Methods for the detection of encysted parasites

ABSTRACT

The present invention relates to immunogenic Toxoplasma gondii proteins, to T. gondii nucleic acid molecules, including those that encode such proteins and to antibodies raised against such proteins. The present invention also includes methods to obtain such proteins, nucleic acid molecules and antibodies. Also included in the present invention are compositions comprising such proteins, nucleic acid molecules and/or antibodies, as well as the use of such compositions to inhibit oocyst shedding by cats due to infection with T. gondii. The present invention also includes the use of certain T. gondii-based antisera to identify such nucleic acid molecules and proteins, as well as nucleic acid molecules and proteins identified by such methods. The present invention also relates to novel methods for the detection of cysts and oocysts.

This application is a continuation-in-part of application Ser. No. 08/994,825, filed Dec. 19, 1997, now abandoned.

FIELD OF THE INVENTION

The present invention relates to Toxoplasma gondii nucleic acid molecules, proteins encoded by such nucleic acid molecules, antibodies raised against such proteins and methods to identify such nucleic acid molecules, proteins or antibodies. The present invention also includes compositions comprising such nucleic acid molecules, proteins and antibodies, as well as their use for inhibiting oocyst shedding by cats infected with T. gondii and for protecting animals from diseases caused by T. gondii.

BACKGROUND OF THE INVENTION

Various attempts to develop a vaccine to both the asexual systemic stage and the sexual entero-epithelial stage of the Toxoplasma life cycle have been reported over the last thirty years (Hermentin, K. and Aspock, H. (1988), Zbl. Bakt. Hyg. A, 269:423-436). These attempts can be grouped into the following categories: 1) immunization with whole killed organism, 2) immunization with selected antigens, either purified native or recombinant protein, 3) immunization with attenuated strains, and 4) immunization with irradiated organisms. Little success has been achieved with immunizations using whole killed organism (Frenkel, J. K. and Smith, D. D. (1982), Journal of Parasitology, 68:744-748). Partial success has been observed with the pure native protein P30 (Bulow, R., and Boothroyd, J. C. (1991), J. Immunol. 147:3496) and with selected fractions of parasite lysates (Lunden, A. Lovgren, K. Uggla, A., and Araujo, F. G.; (1993) Infection and Immunity, 61:2639-2643). However, attempts with purified recombinant antigens have not been successful (Lunden, A., Parmley, S. F., Bengtsson, K. L. and Araujo, F. G. (1997) Parasitology Research, 83:6-9). Studies with irradiated organisms have reported 0-90% protection and are complicated by the uncertainty of truly inactivated irradiated preparations. Effective vaccines have been produced using attenuated strains. Two such mutant strains, ts-4 (Waldeland, H., Pfefferkom, E. R., and Frenkel, J. K. (1983), Journal of Parasitology, 69:171-175) and S48 (Hartley, W. J. and Marshall, S. C. (1957), New Zealand Veterinary Journal, 5:119-124), successfully protect animals against the asexual systemic disease. These strains are delivered in the tachyzoite form and do not protect cats from oocyst shedding. Another strain, T-263 (Frenkel, J. K.; Pfefferkom, E. R.; Smith, D. D.; and Fishback, J. L. (1991), American Journal of Veterinary Research, 52:759-763) is an oocyst minus strain, but was shown to progress through most of the entero-epithelial stages in the cat intestine. Exposure to this strain induces immunity in the cat to oocyst shedding upon subsequent challenge. There remains a need for an effective vaccine for prevention of the diseases caused by infection with Toxoplasma gondii.

SUMMARY OF THE INVENTION

The present invention relates to novel compositions and methods to inhibit Toxoplasma gondii (T. gondii) oocyst shedding by cats, thereby preventing the spread of T. gondii infection. According to the present invention there are provided isolated immunogenic T. gondii proteins and mimetopes thereof, T. gondii nucleic acid molecules, including those that encode such proteins; recombinant molecules including such nucleic acid molecules; recombinant viruses including such nucleic acid molecules; recombinant cells including such nucleic acid molecules; and antibodies that selectively bind to such immunogenic T. gondii proteins.

The present invention also includes methods to obtain and/or identify proteins, nucleic acid molecules, recombinant molecules, recombinant viruses, recombinant cells, and antibodies of the present invention. Also included are compositions comprising such proteins, nucleic acid molecules, recombinant molecules, recombinant viruses, recombinant cells, and antibodies, as well as use of such compositions to inhibit T. gondii oocyst shedding by cats infected with T. gondii, or for preventing T. gondii infection in an animal.

The present invention further includes the use of the nucleic acid molecules or proteins of the present invention as diagnostic reagents for the detection of T. gondii infection. In a preferred embodiment, the present invention includes a novel detection method and kit for detecting T. gondii oocysts in the feces of T. gondii infected cats.

One embodiment of the present invention is an isolated nucleic acid molecule encoding an immunogenic T. gondii protein that can be identified by a method that includes the steps of: a) immunoscreening a T. gondii genomic expression library or cDNA expression library with an antiserum, including an antiserum derived from intestinal secretions; and b) identifying a nucleic acid molecule in the library that expresses a protein that selectively binds to an antibody in the antiserum. Antisera to be used for screening include antiserum raised against T. gondii oocysts, antiserum raised against T. gondii bradyzoites, antiserum raised against T. gondii infected cat gut, and antiserum isolated from a cat immune to T. gondii infection. Another embodiment is an isolated immunogenic T. gondii protein that can be identified by a method that includes the steps of: a) immunoscreening a T. gondii genomic expression library or cDNA expression library with such an antiserum; and b) identifying a protein expressed by the library that selectively binds to antibodies in the antiserum. Also included are methods to identify and isolate such nucleic acid molecules and proteins.

The present application also includes an isolated nucleic acid molecule that hybridizes under stringent hybridization conditions with a gene that includes a nucleic acid sequence cited in Table 1. Also included in the present invention is an isolated nucleic acid molecule that hybridizes under stringent hybridization conditions with a gene that includes a nucleic acid molecule cited in Table 1. Preferred nucleic acid molecules encode immunogenic T. gondii proteins. More preferred nucleic acid molecules are those cited in Table 1.

The present invention also relates to recombinant molecules, recombinant viruses and recombinant cells that include an isolated nucleic acid molecule of the present invention. Also included are methods to produce such nucleic acid molecules, recombinant molecules, recombinant viruses and recombinant cells.

Another embodiment of the present invention is an isolated immunogenic protein encoded by a nucleic acid molecule that hybridizes under stringent hybridization conditions with a gene (i.e., with either the coding strand or the non-coding strand) comprising a nucleic acid sequence cited in Table 1 and/or a nucleic acid molecule cited in Table 1. Note that the nucleic acid molecule hybridizes with the non-coding strand of the gene, that is, with the complement of the coding strand of the gene. A preferred protein is an immunogenic T. gondii protein. More preferred proteins are those encoded by nucleic acid molecules cited in Table 1. Also preferred are the proteins cited in Table 1.

The present invention also relates to: mimetopes of immunogenic T. gondii proteins and isolated antibodies that selectively bind to immunogenic T. gondii proteins or mimetopes thereof. Also included are methods, including recombinant methods, to produce proteins, mimetopes and antibodies of the present invention.

Yet another embodiment of the present invention is a composition to inhibit T. gondii oocyst shedding in a cat due to infection with T. gondii. Such a composition includes one or more of the following protective compounds: an isolated immunogenic T. gondii protein encoded by a nucleic acid molecule that hybridizes under stringent hybridization conditions with a gene comprising a nucleic acid sequence cited in Table 1, and specifically with the non-coding-strand of that gene; an isolated antibody that selectively binds to said immunogenic T. gondii protein; and an isolated nucleic acid molecule that hybridizes under stringent hybridization conditions with a gene comprising a nucleic acid sequence cited in Table 1. Such a composition can also include an excipient, adjuvant or carrier. Preferred compositions comprising a nucleic acid molecule of the present invention include genetic vaccines, recombinant virus vaccines and recombinant cell vaccines. Also included in the present invention is a method to protect an animal, including a human, from disease caused by T. gondii, comprising the step of administering to the animal a composition of the present invention. Preferred animals to treat are cats in order to prevent oocyst shedding caused by T. gondii infection.

DETAILED DESCRIPTION OF THE INVENTION

The present invention provides for isolated immunogenic T. gondii proteins, isolated T. gondii nucleic acid molecules including those encoding such T. gondii proteins, recombinant molecules comprising such nucleic acid molecules, recombinant viruses comprising such nucleic acid molecules, cells transformed with such nucleic acid molecules (i.e., recombinant cells), and antibodies that selectively bind to immunogenic T. gondii proteins. As used herein, the terms isolated immunogenic T. gondii protein and isolated nucleic acid molecule refer to an immunogenic T. gondii protein and a T. gondii nucleic acid molecule, respectively, derived from T. gondii which can be obtained from its natural source or can be produced using, for example, recombinant nucleic acid technology or chemical synthesis. Also included in the present invention is the use of these proteins, nucleic acid molecules, and antibodies as compositions to protect animals from diseases caused by T. gondii and to inhibit T. gondii oocyst shedding in cats. As used herein, a cat refers to any member of the cat family (i.e., Felidae), including domestic cats, wild cats and zoo cats. Examples of cats include, but are not limited to, domestic cats, lions, tigers, leopards, panthers, cougars, bobcats, lynx, jaguars, cheetahs, and servals. A preferred cat to protect is a domestic cat. Further included in the present invention is the use of these proteins, nucleic acid molecules and antibodies for the detection of T. gondii infection in an animal or as targets for the development of chemotherapeutic agents against parasitic infection.

Immunogenic T. gondii protein and nucleic acid molecules of the present invention have utility because they represent novel targets for anti-parasite vaccines or chemotherapeutic agents. Compositions of the present invention can also be used as reagents for the diagnosis of T. gondii infection in cats and other animals, including humans. The products and processes of the present invention are advantageous because they enable the inhibition of T. gondii oocyst shedding in cats, the definitive hosts for T. gondii (i.e., the animals in which T. gondii reproduction takes place). It is to be noted that the proteins and nucleic acid molecules of the present invention have uses beyond eliciting an immune response despite denoting proteins of the present invention as immunogenic proteins.

As described in more detail in the Examples, it was very difficult to isolate a nucleic acid molecule encoding an immunogenic T. gondii protein selectively bound by antisera directed against T. gondii intestinal stages. Such stages are preferred because they represent the sexual cycle of T. gondii, the preferred target for development of a composition to inhibit oocyst shedding. Unfortunately, however, the T. gondii sexual cycle cannot currently be reproduced in culture, and, there is not a simple method by which to produce a cDNA (i.e., complementary DNA) library containing only T. gondii nucleic acid molecules of various stages of the sexual cycle. For example, the infected cat gut is the source of many of the sexual stages of T. gondii, and, as such, material to be used in identifying T. gondii immunogenic proteins are contaminated with cat material. The present invention describes the development of new techniques to isolate and identify nucleic acid molecules encoding immunogenic T. gondii proteins. These techniques include (a) the isolation and enrichment of antisera against a variety of T. gondii life stages, several of which are only present in infected cats, at least predominantly in infected cat guts, and (b) the use of such antisera to screen cDNA and genomic expression libraries to identify nucleic acid molecules that express T. gondii proteins that selectively bind to such antisera.

One embodiment of the present invention is an isolated protein that includes an immunogenic T. gondii protein. The terms “one or more” and “at least one” can be used interchangeably herein. It is also to be noted that the terms “comprising”, “including”, and “having” can be used interchangeably. According to the present invention, an isolated, or biologically pure, protein is a protein that has been removed from its natural milieu. The terms “isolated” and “biologically pure” do not necessarily reflect the extent to which the protein has been purified. An isolated protein of the present invention can be obtained from its natural source, can be produced using recombinant DNA technology, or can be produced by chemical synthesis.”

An isolated protein of the present invention, including a homolog, can be identified in a straight-forward manner by the protein's ability to elicit an immune response against a naturally occurring T. gondii protein. Examples of T. gondii immunogenic proteins include proteins in which amino acids have been deleted (e.g., a truncated version of the protein, such as a peptide), inserted, inverted, substituted and/or derivatized (e.g., by glycosylation, phosphorylation, acetylation, myristoylation, prenylation, palmitoylation, amidation and/or addition of glycerophosphatidyl inositol) such that the homolog includes at least one epitope capable of eliciting an immune response against a T. gondii immunogenic protein, and/or of binding to an antibody directed against a T. gondii immunogenic protein. That is, when the homolog is administered to an animal as an immunogen, using techniques known to those skilled in the art, the animal will produce an immune response against at least one epitope of a T. gondii immunogenic protein. The ability of a protein to effect an immune response can be measured using techniques known to those skilled in the art. As used herein, the term “epitope” refers to the smallest portion of a protein or other antigen capable of selectively binding to the antigen binding site of an antibody or a T-cell receptor. It is well accepted by those skilled in the art that the minimal size of a protein epitope is about four to six amino acids. As is appreciated by those skilled in the art, an epitope can include amino acids that naturally are contiguous to each other as well as amino acids that, due to the tertiary structure of the natural protein, are in sufficiently close proximity to form an epitope. According to the present invention, an epitope includes a portion of a protein comprising at least about 4 amino acids, at least about 5 amino acids, at least about 6 amino acids, at least about 10 amino acids, at least about 15 amino acids, at least about 20 amino acids, at least about 25 amino acids, at least about 30 amino acids, at least about 35 amino acids, at least about 40 amino acids, at least about 50 amino acids, at least about 100 amino acids, at least about 150 amino acids, at least about 200 amino acids, at least about 250 amino acids, or at least about 300 amino acids.

Immunogenic T. gondii protein homologs can be the result of natural allelic variation or natural mutation. Immunogenic T. gondii protein homologs of the present invention can also be produced using techniques known in the art including, but not limited to, direct modifications to the protein or modifications to the gene encoding the protein using, for example, classic or recombinant DNA techniques to effect random or targeted mutagenesis.

As used herein, a nucleic acid molecule encoding an immunogenic T. gondii protein includes nucleic acid sequences related to a natural T. gondii gene. As used herein, a T. gondii gene includes all regions of the genome related to the gene, such as regulatory regions that control production of the immunogenic T. gondii protein encoded by the gene (for example, transcription, translation or post-translation control regions) as well as the coding region itself, and any introns or non-translated coding regions. As used herein, a gene that “includes” or “comprises” a sequence may include that sequence in one contiguous array, or may include the sequence as fragmented exons. As used herein, the term “coding region” refers to a continuous linear array of nucleotides that translates into a protein. A full-length coding region is that coding region that is translated into a full-length protein, i.e., a complete protein as would be initially translated in its natural milieu, prior to any post-translational modifications.

In one embodiment, a T. gondii gene of the present invention includes at least one of the nucleic acid molecules cited in Table 1 (i.e., the cited nucleic acid molecules). The coding strands of the cited nucleic acid molecules are represented, respectively, by the nucleic acid sequences (i.e., the cited nucleic acid sequences) shown in Table 1. Also presented in Table 1 are the deduced amino acid sequences encoded by each of the cited nucleic acid molecules (i.e., the cited amino acid sequences) and the protein name designations (i.e., the cited proteins).

TABLE 1 SEQ Nucleic Acid Amino Acid ID NO TYPE Molecules Molecules Original Designation 1 DNA nTG1₃₅₇ Tg-41 2 Protein nTG1₁₁₉ PTG-41 3 DNA nTG2₃₃₉ Tg-45 4 Protein PTG2₁₀₈ PTG-45 5 DNA nTG4₅₂₆ Tg-50 6 Protein PTG4₁₇₅ PTG-50 7 cDNA nTG4₁₄₇₈ Tg-50c 8 Protein PTG4₃₈₁ PTG-50c 9 DNA nTG5₆₅₇ Q2-4 10 Protein PTG5₂₁₉ PQ2-4 11 cDNA nTG5₁₀₂₉ Q2-4c 12 Protein PTG5₂₇₃ PQ2-4c 13 DNA nTG6₄₂₅ Q2-9 14 Protein PTG6₁₄₂ PQ2-9 15 DNA nTG7₄₁₇ Q2-10 16 Protein PTG7₁₃₉ PQ2-10 17 DNA nTG8₅₀₇ Q2-11 18 Protein PTG8₅₁ PQ2-11 19 DNA nTG9₇₁₈ 4499-9 20 Protein PTG9₉₉ P4499-9 21 DNA nTG10₄₄₁ 4604-2 22 Protein PTG10₁₄₇ P4604-2 23 DNA nTG11₄₂₈ 4604-3 24 Protein PTG11₁₃₄ P4604-3 25 DNA nTG13₂₈₂ 4604-5 26 DNA nTG15₃₀₄ 4604-10 27 Protein PTG15₁₀₁ P4604-10 28 DNA nTG16₂₈₄ 4604-17 29 Protein PTG16₉₅ P4604-17 30 DNA nTG17₆₉₀ 4604-54 31 Protein PTG17₂₃₀ P4604-54 32 DNA nTG18₃₁₃ 4604-62 33 Protein PTG18₅₄ P4604-62 34 DNA nTG19₃₈₉ 4604-63 35 Protein PTG19₆₅ P4604-63 36 DNA nTG21₅₄₈ 4604-69 37 Protein PTG21₁₈₃ P4604-69 38 DNA nTG22₃₁₀ BZ1-2 39 Protein PTG22₉₅ PBZ1-2 40 DNA nTG23₂₂₀ BZ1-3 41 Protein PTG23₇₃ PBZ1-3 42 DNA nTG24₆₄₂ BZ1-6 43 Protein PTG24₃₄ PBZ1-6 44 DNA nTG25₃₈₁ BZ2-3 45 Protein PTG25₂₇ PBZ2-3 46 DNA nTG26₄₃₂ BZ2-5 47 Protein PTG26₈₅ PBZ2-5 48 DNA nTG27₂₈₂ BZ3-2 49 Protein PTG27₃₅ PBZ3-2 50 DNA nTG28₄₆₆ BZ4-3 51 Protein PTG28₇₁ PBZ4-3 52 DNA nTG30₅₃₉ BZ4-6 53 Protein PTG30₂₀ PBZ4-6 54 DNA nTG31₁₂₃₃ AMX/I-5 55 DNA nTG32₄₁₁ AMX/I-6 56 Protein PTG32₆₀ PAMX/I-6 57 DNA nTG33₄₄₁ AMX/I-7 58 Protein PTG33₁₁₈ PAMX/I-7 59 DNA nTG34₄₉₁ AMX/I-9 60 Protein PTG34₃₄ PAMX/I-9 61 DNA nTG35₃₈₇ AMX/I-10 62 Protein PTG35₁₂₉ PAMX/I-10 63 DNA nTG36₄₁₇ AMI-23 64 Protein PTG36₁₃₉ PAMI-23 65 DNA nTG37₄₁₆ AMI-24 66 Protein PTG37₁₃₈ PAMI-24 67 DNA nTG38₅₀₀ AMI-28 68 DNA nTG40₃₂₁ AMI-47 69 Protein PTG40₇₃ PAMI-47 70 DNA nTG41_(513+C86) OC-1 71 Protein PTG41₁₇₁ POC-1 72 DNA nTG42₅₂₈ OC-2 73 Protein PTG42₁₇₆ POC-2 74 DNA nTG43₃₇₅ OC-13 75 Protein PTG43₁₂₅ POC-13 76 DNA nTG44₅₄₃ OC-14 77 Protein PTG44₈₉ POC-14 78 DNA nTG45₅₇₃ OC-22 79 Protein PTG45₁₉₁ POC-22 80 DNA nTG46₁₈₃₅ OC-23 81 Protein PTG46₆₁₂ POC-23 82 DNA nTG48₆₀₄ 4CQA7f 83 Protein PTG48₁₁₂ P4CQA7f 84 DNA nTG48₅₄₉ 4CQA7r 85 DNA nTG49₂₇₀ 4CQA11 86 Protein PTG49₉₀ P4CQA11 87 DNA nTG50₃₀₆ 4CQA19 88 Protein PTG50₁₀₂ P4CQA19 89 DNA nTG51₈₀₄ 4CQA21 90 Protein PTG51₂₆₈ P4CQA21 91 DNA nTG52₈₆₇ 4CQA22 92 Protein PTG52₂₈₉ P4CQA22 93 DNA nTG53₁₄₃₄ 4CQA24 94 Protein PTG53₁₆₄ P4CQA24 95 DNA nTG54₆₈₀ 4CQA25 96 Protein PTG54₂₂₇ P4CQA25 97 DNA nTG55₂₉₆ 4CQA26 98 Protein PTG55₉₉ P4CQA26 99 DNA nTG56₇₂₃ 4CQA27 100 Protein PTG56₅₃ P4CQA27 101 DNA nTG57₂₇₀ 4CQA29 102 Protein PTG57₉₀ P4CQA29 103 DNA nTG58₅₀₃ R8050-2 104 Protein PTG58₆₂ PR8050-2 105 DNA nTG60₃₂₂ R8050-5 106 Protein PTG60₇₃ PR8050-5 107 DNA nTG61₃₉₀ R8050-6 108 Protein PTG61₆₇ PR8050-6 109 DNA nTG62₆₉₉ M2A1 110 Protein PTG62₂₃₃ PM2A1 111 DNA nTG63₄₁₉ M2A2 112 Protein PTG63₁₄₀ PM2A2 113 DNA nTG64₃₀₃ M2A3 114 Protein PTG64₁₀₁ PM2A3 115 DNA nTG65₆₉₆ M2A4 116 Protein PTG65₂₃₂ PM2A4 117 DNA nTG66₁₇₃ M2A5 118 Protein PTG66₅₈ PM2A5 119 DNA nTG67₃₆₉ M2A6 120 Protein PTG67₁₂₃ PM2A6 121 DNA nTG68₅₆₆ M2A7 122 Protein PTG68₆₁ PM2A7 123 DNA nTG69₆₁₆ M2A11 124 Protein PTG69₂₀₅ PM2A11 125 DNA nTG70₇₆₂ M2A16 126 Protein PTG70₂₅₄ PM2A16 127 DNA nTG71₂₃₆ M2A18 128 Protein PTG71₇₉ PM2A18 129 DNA nTG72₅₆₉ M2A19 130 Protein PTG72₁₉₀ PM2A19 131 DNA nTG73₂₃₂ M2A20 132 DNA nTG74₂₇₆ M2A21 133 Protein PTG74₉₂ PM2A21 134 DNA nTG75₃₀₉ M2A22 135 Protein PTG75₁₀₃ PM2A22 136 DNA nTG76₅₃₄ M2A23 137 Protein PTG76₁₇₈ PM2A23 138 DNA nTG76₄₂₃ M2A23 139 DNA nTG77₃₂₇ M2A24 140 Protein PTG77₁₀₉ PM2A24 141 DNA nTG78₄₄₄ M2A25 142 Protein PTG78₁₄₈ PM2A25 143 DNA nTG79₉₂₈ M2A29 144 Protein PTG79₁₉ PM2A29 265 DNA nTG22_(310a) BZ1-2-a 266 Protein PTG22_(95a) PBZ1-2-a 267 DNA nTG64_(303a) M2A3-a 268 Protein PTG64_(101a) PM2A3-a 269 DNA nTG71_(236a) M2A18-a 270 Protein PTG71_(79a) PM2A18-a 271 DNA nTG6_(425a) Q2-9-1-a 272 Protein PTG6_(142a) PQ2-9-a 273 DNA nTG41_(513a) OC-1-a 274 Protein PTG41_(171a) POC-1-a 282 cDNA nTG₁₂₂₅ MGIS42 283 Protein PTG₂₈ PMGIS42 284 DNA nTG₁₂₂₅ rc 292 cDNA nTG₁₅₇₃ MGIS44 293 Protein PTG₇₃ PMGIS44 294 DNA nTG₁₅₇₃ rc 306 cDNA nTG₂₄₁₇ MGIS48 307 Protein PTG₉ PMGIS48 308 DNA nTG₂₄₁₇ rc 311 cDNA nTG₁₇₈₅ MGIS65 312 Protein PTG₂₄ PMGIS65 313 DNA nTG₁₇₈₅ rc 338 DNA nTG₆₄₇ 511-44 genomic 339 DNA nTG₆₄₇ rc 340 cDNA nTG₈₆₇ 511-44 coding region 341 Protein PTG₂₈₈ P511-44 342 DNA nTG₈₆₇ rc 343 cDNA nTG₁₃₉₇ 511-44cDNA 345 DNA nTG₁₃₉₇ rc

It should be noted that because nucleic acid sequencing technology is not entirely error-free, the nucleic acid sequences disclosed in the present invention (as well as other nucleic acid and protein sequences presented herein) represent the apparent nucleic acid sequences of the nucleic acid molecules encoding T. gondii proteins of the present invention. The nucleic acid molecules cited in Table 1 also include the complementary (i.e., apparently non-coding) strands. As used herein the terms “complementary strand” and “complement” refer to the nucleic acid sequence of the DNA strand that is fully complementary to the DNA strand having the listed sequence, which can easily be determined by those skilled in the art. Likewise, a nucleic acid sequence complement of any nucleic acid sequence of the present invention refers to the nucleic acid sequence of the nucleic acid strand that is fully complementary to (i.e., can form a complete double helix with) the strand for which the sequence is cited. Production of the cited nucleic acid molecules is disclosed in the Examples as are methods to obtain nucleic acid sequences of the coding strands of such molecules and the amino acid sequences deduced therefrom.

In another embodiment, a T. gondii gene or nucleic acid molecule can be a naturally occurring allelic variant that includes a similar but not identical sequence to the cited nucleic acid molecules. A naturally occurring allelic variant of a T. gondii gene including any of the above-listed nucleic acid sequences is a gene that occurs at essentially the same locus (or loci) in the genome as the gene including at least one of the above-listed sequences, but which, due to natural variations caused by, for example, mutation or recombination, has a similar but not identical sequence. Because natural selection typically selects against alterations that affect function, allelic variants usually encode proteins having similar activity to that of the protein encoded by the gene to which they are being compared. Allelic variants of genes or nucleic acid molecules can also comprise alterations in the 5′ or 3′ untranslated regions of the gene (e.g., in regulatory control regions), or can involve alternative splicing of a nascent transcript, thereby bringing alternative exons into juxtaposition. Allelic variants are well known to those skilled in the art and would be expected to be found within a given T. gondii organism or population, because, for example, the genome goes through a diploid stage, and sexual reproduction results in the reassortment of alleles.

In one embodiment of the present invention, an isolated immunogenic T. gondii protein is encoded by a nucleic acid molecule that hybridizes under stringent hybridization conditions to a gene encoding an immunogenic T. gondii protein. The minimal size of a T. gondii protein of the present invention is a size sufficient to be encoded by a nucleic acid molecule capable of forming a stable hybrid (i.e., hybridizing under stringent hybridization conditions) with the complementary sequence of a nucleic acid molecule encoding the corresponding natural protein. The size of a nucleic acid molecule encoding such a protein is dependent on the nucleic acid composition and the percent homology between the T. gondii nucleic acid molecule and the complementary nucleic acid sequence. It can easily be understood that the extent of homology required to form a stable hybrid under stringent conditions can vary depending on whether the homologous sequences are interspersed throughout a given nucleic acid molecule or are clustered (i.e., localized) in distinct regions on a given nucleic acid molecule.

The minimal size of a nucleic acid molecule capable of forming a stable hybrid with a gene encoding an immunogenic T. gondii protein is typically at least about 12 to about 15 nucleotides in length if the nucleic acid molecule is GC-rich and at least about 15 to about 17 bases in length if it is AT-rich. The minimal size of a nucleic acid molecule used to encode an immunogenic T. gondii protein homolog of the present invention is from about 12 to about 18 nucleotides in length. Thus, the minimal size of an immunogenic T. gondii protein homolog of the present invention is from about 4 to about 6 amino acids in length. There is no limit, other than a practical limit, on the maximal size of a nucleic acid molecule encoding an immunogenic T. gondii protein of the present invention because a nucleic acid molecule of the present invention can include a portion of a gene, an entire gene, or multiple genes. A preferred nucleic acid molecule of the present invention is a nucleic acid molecule that is at least 12 nucleotides in length. Also preferred are nucleic acid molecules that are at least 18 nucleotides, or at least 20 nucleotides, or at least 25 nucleotides, or at least 30 nucleotides, or at least 40 nucleotides, or at least 50 nucleotides, or at least 70 nucleotides, or at least 100 nucleotides, or at least 150 nucleotides, or at least 200 nucleotides, or at least 250 nucleotides, or at least 300 nucleotides, or at least 350 nucleotides, or at least 400 nucleotides, or at least 500 nucleotides, or at least 750 nucleotides, or at least 1000 nucleotides, or at least 1500 nucleotides, or at least 1750 nucleotides, or at least 2000 nucleotides, or at least 2250 nucleotides, or at least 2417 nucleotides in length, The preferred size of a protein encoded by a nucleic acid molecule of the present invention depends on whether a full-length, fusion, multivalent, or functional portion of such a protein is desired.

Stringent hybridization conditions are determined based on defined physical properties of the gene to which the nucleic acid molecule is being hybridized, and can be defined mathematically. Stringent hybridization conditions are those experimental parameters that allow an individual skilled in the art to identify significant similarities between heterologous nucleic acid molecules. These conditions are well known to those skilled in the art. See, for example, Sambrook, et al., 1989, Molecular Cloning: A Laboratory Manual, Cold Spring Harbor Labs Press, and Meinkoth, et al., 1984, Anal. Biochem. 138, 267-284, each of which is incorporated by reference herein in its entirety. As explained in detail in the cited references, the determination of hybridization conditions involves the manipulation of a set of variables including the ionic strength (M, in moles/liter), the hybridization temperature (°C.), the concentration of nucleic acid helix destabilizing agents (such as formamide), the average length of the shortest hybrid duplex (n), and the percent G+C composition of the fragment to which an unknown nucleic acid molecule is being hybridized. For nucleic acid molecules of at least about 150 nucleotides, these variables are inserted into a standard mathematical formula to calculate the melting temperature, or T_(m), of a given nucleic acid molecule. As defined in the formula below, T_(m) is the temperature at which two complementary nucleic acid molecule strands will disassociate, assuming 100% complementarity between the two strands:

T _(m)=81.5° C.+16.6 log M+0.41(% G+C)−500/n−0.61(% formamide).

For nucleic acid molecules smaller than about 50 nucleotides, hybrid stability is defined by the dissociation temperature (T_(d)), which is defined as the temperature at which 50% of the duplexes dissociate. For these smaller molecules, the stability at a standard ionic strength is defined by the following equation:

T _(d)=4(G+C)+2(A+T).

A temperature of 5° C. below T_(d) is used to detect hybridization between perfectly matched molecules.

Also well known to those skilled in the art is how base-pair mismatch, i.e. differences between two nucleic acid molecules being compared, including non-complementarity of bases at a given location, and gaps due to insertion or deletion of one or more bases at a given location on either of the nucleic acid molecules being compared, will affect T_(m) or T_(d) for nucleic acid molecules of different sizes. For example, T_(m) decreases about 1° C. for each 1% of mismatched base-pairs for hybrids greater than about 150 bp, and T_(d) decreases about 5° C. for each mismatched base-pair for hybrids below about 50 bp. Conditions for hybrids between about 50 and about 150 base-pairs can be determined empirically and without undue experimentation using standard laboratory procedures well known to those skilled in the art. These simple procedures allow one skilled in the art to set the hybridization conditions (by altering, for example, the salt concentration, the formamide concentration or the temperature) so that only nucleic acid hybrids with less than a specified % base-pair mismatch will hybridize. Stringent hybridization conditions are commonly understood by those skilled in the art to be those experimental conditions that will allow hybridization between molecules having about 30% or less base-pair mismatch (i.e., about 70% or greater identity). Because one skilled in the art can easily determine whether a given nucleic acid molecule to be tested is less than or greater than about 50 nucleotides, and can therefore choose the appropriate formula for determining hybridization conditions, he or she can determine whether the nucleic acid molecule will hybridize with a given gene under stringent hybridization conditions and similarly whether the nucleic acid molecule will hybridize under conditions designed to allow a desired amount of base pair mismatch.

Hybridization reactions are often carried out by attaching the nucleic acid molecule to be hybridized to a solid support such as a membrane, and then hybridizing with a labeled nucleic acid molecule, typically referred to as a probe, suspended in a hybridization solution. Examples of common hybridization reaction techniques include, but are not limited to, the well-known Southern and northern blotting procedures. Typically, the actual hybridization reaction is done under non-stringent conditions, i.e., at a lower temperature and/or a higher salt concentration, and then high stringency is achieved by washing the membrane in a solution with a higher temperature and/or lower salt concentration in order to achieve the desired stringency.

For example, if the skilled artisan wished to identify a nucleic acid molecule that hybridizes under stringent hybridization conditions with a T. gondii nucleic acid molecule of about 150 bp in length, the following conditions could preferably be used. As an example, the average G+C content of Dirofilaria immitis DNA is about 35%. The unknown nucleic acid molecules would be attached to a support membrane, and the 150 bp probe would be labeled, e.g. with a radioactive tag. The hybridization reaction could be carried out in a solution comprising 2×SSC and 0% formamide, at a temperature of about 37° C. (low stringency conditions). Solutions of differing concentrations of SSC can be made by one of skill in the art by diluting a stock solution of 20×SSC (175.3 gram NaCl and about 88.2 gram sodium citrate in 1 liter of water, pH 7) to obtain the desired concentration of SSC. In order to achieve high stringency hybridization, the skilled artisan would calculate the washing conditions required to allow up to 30% base-pair mismatch. For example, in a wash solution comprising 1×SSC and 0% formamide, the T_(m) of perfect hybrids would be about 79° C.:

81.5° C.+16.6 log (0.15M)+(0.41×35)−(500/150)−(0.61×0)=79° C.

Thus, to achieve hybridization with nucleic acid molecules having about 30% base-pair mismatch, hybridization washes would be carried out at a temperature of about 49° C. It is thus within the skill of one in the art to calculate additional hybridization temperatures based on the desired percentage base-pair mismatch, formulae and G/C content disclosed herein. For example, it is appreciated by one skilled in the art that as the nucleic acid molecule to be tested for hybridization against nucleic acid molecules of the present invention having sequences specified herein becomes longer than 150 nucleotides, the T_(m) for a hybridization reaction allowing up to 30% base-pair mismatch will not vary significantly from 49° C.

Furthermore, it is known in the art that there are commercially available computer programs for determining the degree of similarity between two nucleic acid sequences. These computer programs include various known methods to determine the percentage identity and the number and length of gaps between hybrid nucleic acid molecules. Preferred methods to determine the percent identity among amino acid sequences and also among nucleic acid sequences include analysis using one or more of the commercially available computer programs designed to compare and analyze nucleic acid or amino acid sequences. These computer programs include, but are not limited to, GCG™ (available from Genetics Computer Group, Madison, Wis.), DNAsis™ (available from Hitachi Software, San Bruno, Calif.) and MacVector™ (available from the Eastman Kodak Company, New Haven, Conn.). A preferred method to determine percent identity among amino acid sequences and also among nucleic acid sequences includes using the GCG™ program, Bestfit function with default parameter settings, or a gap weight of 12, a length weight of 4, an average match of 2.912, and an average mismatch of −2.003.

A preferred immunogenic T. gondii protein of the present invention is a compound that, when administered to an animal in an effective manner, is capable of protecting that animal from disease caused by T. gondii or, in the case of cats, is capable of preventing T. gondii oocyst shedding in cats infected with T. gondii. In accordance with the present invention, the ability of an immunogenic T. gondii protein of the present invention to protect an animal from T. gondii disease refers to the ability of that protein to, for example, treat, ameliorate and/or prevent disease caused by T. gondii. In one embodiment, an immunogenic T. gondii protein of the present invention can elicit an immune response (including a humoral and/or cellular immune response) against T. gondii.

The present invention also includes mimetopes of immunogenic T. gondii proteins of the present invention. As used herein, a mimetope of an immunogenic T. gondii protein of the present invention refers to any compound that is able to mimic the activity of such an immunogenic T. gondii protein, often because the mimetope has a structure that mimics the particular T. gondii protein. Mimetopes can be, but are not limited to: peptides that have been modified to decrease their susceptibility to degradation such as all-D retro peptides; anti-idiotypic and/or catalytic antibodies, or fragments thereof; non-proteinaceous immunogenic portions of an isolated protein (e.g., carbohydrate structures); and synthetic or natural organic molecules, including nucleic acids. Such mimetopes can be designed using computer-generated structures of proteins of the present invention. Mimetopes can also be obtained by generating random samples of molecules, such as oligonucleotides, peptides or other organic molecules, and screening such samples by affinity chromatography techniques using the corresponding binding partner.

One embodiment of an immunogenic T. gondii protein of the present invention is a fusion protein that includes an immunogenic T. gondii protein-containing domain attached to one or more fusion segments. Suitable fusion segments for use with the present invention include, but are not limited to, segments that can: enhance a protein's stability; act as an immunopotentiator to enhance an immune response against an immunogenic T. gondii protein; and/or assist in purification of an immunogenic T. gondii protein (e.g., by affinity chromatography). A suitable fusion segment can be a domain of any size that has the desired function (e.g., imparts increased stability, imparts increased immunogenicity to a protein, and/or simplifies purification of a protein). Fusion segments can be joined to amino and/or carboxyl termini of the immunogenic T. gondii protein-containing domain of the protein and can be susceptible to cleavage in order to enable straightforward recovery of an immunogenic T. gondii protein. Fusion proteins are preferably produced by culturing a recombinant cell transformed with a nucleic acid molecule that encodes a protein including the fusion segment attached to either the carboxyl and/or amino terminal end of an immunogenic T. gondii protein-containing domain. Preferred fusion segments include a metal binding domain (e.g., a poly-histidine segment); an immunoglobulin binding domain (e.g., Protein A; Protein G; T cell; B cell; Fc receptor or complement protein antibody-binding domains); a sugar binding domain (e.g., a maltose binding domain); and/or a “tag” domain (e.g., at least a portion of β-galactosidase, a strep tag peptide, a T7 tag peptide, a Flag™ peptide, or other domains that can be purified using compounds that bind to the domain, such as monoclonal antibodies). More preferred fusion segments include metal binding domains, such as a poly-histidine segment; a maltose binding domain; a strep tag peptide, such as that available from Biometra in Tampa, Fla.; and an S10 peptide.

In another embodiment, an immunogenic T. gondii protein of the present invention also includes at least one additional protein segment that is capable of protecting an animal from one or more diseases. Such a multivalent protective protein can be produced, for example, by culturing a cell transformed with a nucleic acid molecule comprising two or more nucleic acid domains joined together in such a manner that the resulting nucleic acid molecule is expressed as a multivalent protective compound containing at least two protective compounds capable of protecting an animal from diseases caused, for example, by at least one infectious agent.

Examples of multivalent protective compounds include, but are not limited to, an immunogenic T. gondii protein of the present invention attached to one or more compounds protective against one or more other infectious agents, particularly an agent that infects cats. In another embodiment, one or more protective compounds can be included in a multivalent vaccine comprising an immunogenic T. gondii protein of the present invention and one or more other protective molecules as separate compounds.

A preferred isolated immunogenic T. gondii protein of the present invention includes a protein that is encoded by a nucleic acid molecule that hybridizes under stringent hybridization conditions with a gene (i.e., with the non-coding strand which is a complement of the coding strand) comprising at least one of the nucleic acid molecules cited in Table 1. As such, also preferred is a protein that is encoded by a nucleic acid molecule that hybridizes under stringent hybridization conditions with the non-coding strand of a gene comprising at least one of the nucleic acid sequences cited in Table 1. More preferred is a protein encoded by a nucleic acid molecule that hybridizes under stringent hybridization conditions with at least one of the cited nucleic acid molecules particularly since those nucleic acid molecules have been shown to encode proteins that selectively bind to antiserum that either was raised against T. gondii oocysts, bradyzoites, or infected cat gut, or was isolated from a cat immune to T. gondii infection. As such, also preferred is a protein encoded by a nucleic acid molecule that hybridizes under stringent hybridization conditions with the complement of at least one of the cited nucleic acid sequences.

Even more preferred are isolated proteins having an amino acid sequence encoded by a nucleic acid molecules that are at least about 75%, preferably at least about 80%, more preferably at least about 85%, even more preferably at least about 90%, even more preferably at least about 95%, and even more preferably at least about 98% identical to one of the nucleic acid molecules and/or nucleic acid sequences cited in Table 1. Also preferred are proteins that comprise one or more epitopes of any of the proteins having such amino acid sequences.

A particularly preferred isolated protein of the present invention is a protein having an amino acid sequence encoded by at least one of the cited nucleic acid molecules and/or cited nucleic acid sequences, a protein encoded by an allelic variant of at least one of the cited nucleic acid molecules and/or nucleic acid sequences, or a protein comprising an epitope of any of the proteins having such amino acid sequences.

In one embodiment, preferred immunogenic T. gondii proteins of the present invention include proteins that are at least about 75%, preferably at least about 80%, more preferably at least about 85%, even more preferably at least about 90%, and even more preferably at least about 95% identical to at least one of the proteins cited in Table 1. As such, also preferred are proteins that are at least about 75%, preferably at least about 80%, more preferably at least about 85%, even more preferably at least about 90%, and even more preferably at least about 95% identical to at least one of the amino acid sequences cited in Table 1. Also preferred are proteins that comprise one or more epitopes of any of such proteins. More preferred are immunogenic T. gondii proteins comprising the cited proteins and/or having the cited amino acid sequences, proteins encoded by allelic variants of nucleic acid molecules encoding proteins including the cited proteins and/or having the cited amino acid sequences, and proteins having one or more epitopes of such proteins.

Another embodiment of the present invention is an isolated nucleic acid molecule comprising a T. gondii nucleic acid molecule that encodes an immunogenic T. gondii protein. The identifying characteristics of such nucleic acid molecules are heretofore described. A nucleic acid molecule of the present invention can include an isolated natural T. gondii nucleic acid molecule or a homolog thereof, the latter of which is described in more detail below. A nucleic acid molecule of the present invention can include one or more regulatory regions, full-length or partial coding regions, or combinations thereof. The minimal size of a nucleic acid molecule of the present invention is a size sufficient to allow the formation of a stable hybrid (i.e., hybridization under stringent hybridization conditions) with the complementary sequence of another nucleic acid molecule. The minimal size of an T. gondii nucleic acid molecule of the present invention is from about 12 to about 18 nucleotides in length.

In accordance with the present invention, an isolated nucleic acid molecule is a nucleic acid molecule that has been removed from its natural milieu (i.e., that has been subjected to human manipulation) and can include DNA, RNA, or derivatives of either DNA or RNA. Accordingly, the term “isolated”, as used herein to describe a nucleic acid molecule, does not reflect the extent to which the nucleic acid molecule has been purified. An isolated T. gondii nucleic acid molecule of the present invention can be isolated from its natural source or produced using recombinant nucleic acid technology (e.g., polymerase chain reaction (PCR) amplification or cloning) or chemical synthesis. Isolated T. gondii nucleic acid molecules can include, for example, natural allelic variants and nucleic acid molecules modified by nucleotide insertions, deletions, substitutions, and/or inversions in a manner such that the modifications do not substantially interfere with the nucleic acid molecule's ability to encode an immunogenic T. gondii protein of the present invention.

A homolog of a nucleic acid molecule encoding an immunogenic T. gondii protein can be produced using a number of methods known to those skilled in the art, see, for example, Sambrook et al., 1989, Molecular Cloning. A Laboratory Manual, Cold Spring Harbor Labs Press; Sambrook et al., ibid., is incorporated by reference herein in its entirety. For example, nucleic acid molecules can be modified using a variety of techniques including, but not limited to, classic mutagenesis and recombinant DNA techniques such as site-directed mutagenesis, chemical treatment, restriction enzyme cleavage, ligation of nucleic acid fragments, PCR amplification, synthesis of oligonucleotide mixtures and ligation of mixture groups to “build” a mixture of nucleic acid molecules, and combinations thereof. Nucleic acid molecule homologs can be selected by hybridization with a nucleic acid molecule encoding an immunogenic T. gondii protein or by screening the function of a protein encoded by the nucleic acid molecule (e.g., ability to elicit an immune response against at least one epitope of an immunogenic T. gondii protein).

An isolated nucleic acid molecule of the present invention can include a nucleic acid sequence that encodes at least one immunogenic T. gondii protein of the present invention, examples of which are disclosed herein. Although the phrase “nucleic acid molecule” primarily refers to the physical nucleic acid molecule and the phrase “nucleic acid sequence” primarily refers to the sequence of nucleotides on the nucleic acid molecule, the two phrases can be used interchangeably, especially with respect to a nucleic acid molecule, or a nucleic acid sequence, capable of encoding an T. gondii protein.

A preferred nucleic acid molecule of the present invention, when administered to a cat, is capable of preventing T. gondii oocyst shedding. As will be disclosed in more detail below, such a nucleic acid molecule can be, or encode, an antisense RNA, a molecule capable of triple helix formation, a ribozyme, or other nucleic acid-based drug compound. In additional embodiments, a nucleic acid molecule of the present invention can encode a protective protein (e.g., an immunogenic T. gondii protein of the present invention), the nucleic acid molecule being delivered to the animal, for example, by direct injection (i.e, as a genetic vaccine) or in a vehicle such as a recombinant virus vaccine or a recombinant cell vaccine. Another preferred nucleic acid molecule of the present invention, when administered to an animal, is capable of preventing disease in that animal caused by T. gondii.

One embodiment of the present invention is an isolated nucleic acid molecule that hybridizes under stringent hybridization conditions with a nucleic acid molecule comprising at least one of the nucleic acid molecules cited in Table 1. As such, also preferred is a nucleic acid molecule that hybridizes under stringent hybridization conditions with at least one of the nucleic acid sequences cited in Table 1 or with a complement of such a sequence. More preferred is a nucleic acid molecule that hybridizes under stringent hybridization conditions with at least one of the cited nucleic acid molecules. As such, also preferred is a nucleic acid molecule that hybridizes under stringent hybridization conditions with at least one of the cited nucleic acid sequences or with a complement thereof.

Even more preferred are isolated nucleic acid molecules that are at least about 75%, preferably at least about 80%, more preferably at least about 85%, even more preferably at least about 90%, even more preferably at least about 95%, and even more preferably at least about 98% identical to one of the nucleic acid molecules and/or nucleic acid sequences cited in Table 1. Also preferred are nucleic acid molecules that form stable hybrids with nucleic acid molecules having those percent identities.

A particularly preferred isolated nucleic acid molecule of the present invention is a nucleic acid molecule that comprises at least one of the cited nucleic acid molecules and/or cited nucleic acid sequences, a nucleic acid molecule that is an allelic variant of at least one of the cited nucleic acid molecules and/or nucleic acid sequences, or a nucleic acid molecule that is a portion thereof (i.e., a nucleic acid molecule that forms a stable hybrid with at least one of the cited nucleic acid molecules or allelic variants thereof).

In one embodiment, a nucleic acid molecule encoding an immunogenic T. gondii protein of the present invention encodes a protein that is at least about 75%, preferably at least about 80%, more preferably at least about 85%, even more preferably at least about 90%, and even more preferably at least about 95% identical to the proteins cited in Table 1. Even more preferred is a nucleic acid molecule encoding a protein cited in Table 1 or an allelic variant of such a nucleic acid molecule. Also preferred are nucleic acid molecules encoding proteins comprising one or more epitopes of proteins having the cited percent identities or epitopes of proteins cited in Table 1 or encoded by nucleic acid molecules that are allelic variants of nucleic acid molecules cited in Table 1.

In another embodiment, a nucleic acid molecule encoding an immunogenic T. gondii protein of the present invention encodes a protein having an amino acid sequence that is at least about 75%, preferably at least about 80%, more preferably at least about 85%, even more preferably at least about 90%, and even more preferably at least about 95% identical to at least one of the amino acid sequences cited in Table 1. Even more preferred is a nucleic acid molecule encoding a protein having an amino acid sequence cited in Table 1 or an allelic variant of such a nucleic acid molecule. Also preferred are nucleic acid molecules encoding proteins comprising one or more epitopes of proteins having the cited percent identities or epitopes of proteins having amino acid sequences cited in Table 1 or encoded by nucleic acid molecules that are allelic variants of nucleic acid molecules cited in Table 1.

Note that nucleic acid molecules of the present invention can include nucleotide sequences in addition to those disclosed above, such as, but not limited to, nucleotide sequences comprising a full-length gene, a full-length coding region, a nucleic acid molecule encoding a fusion protein, or a nucleic acid molecule encoding a multivalent protective compound. Also included in the present invention are nucleic acid molecules that have been modified to accommodate codon usage properties of the cells in which such nucleic acid molecules are to be expressed. Preferred nucleic acid molecules of the present invention include fragments of the nucleic acid molecules disclosed in Table 1.

Knowing the nucleic acid sequences of certain nucleic acid molecules encoding immunogenic T. gondii proteins of the present invention allows one skilled in the art to, for example, (a) make copies of those nucleic acid molecules, (b) obtain nucleic acid molecules including at least a portion of such nucleic acid molecules (e.g., nucleic acid molecules including full-length genes, full-length coding regions, regulatory control sequences, truncated coding regions), and (c) obtain other nucleic acid molecules encoding an immunogenic T. gondii proteins. Such nucleic acid molecules can be obtained in a variety of ways including screening appropriate expression libraries with antibodies of the present invention; traditional cloning techniques using oligonucleotide probes of the present invention to screen appropriate libraries; and PCR amplification of appropriate libraries or DNA using oligonucleotide primers of the present invention. Preferred libraries to screen or from which to amplify nucleic acid molecules include T. gondii cDNA libraries as well as genomic DNA libraries. Similarly, preferred DNA sources from which to amplify nucleic acid molecules include T. gondii EDNA and genomic DNA. Techniques to clone and amplify nucleic acid molecules are disclosed, for example, in Sambrook et al., ibid.

The present invention also includes nucleic acid molecules that are oligonucleotides capable of hybridizing, under stringent hybridization conditions, with complementary regions of other, preferably longer, nucleic acid molecules of the present invention such as those comprising nucleic acid molecules encoding immunogenic T. gondii proteins. Oligonucleotides of the present invention can be RNA, DNA, or derivatives of either. The minimum size of such oligonucleotides is the size required for formation of a stable hybrid between an oligonucleotide and a complementary sequence on a nucleic acid molecule of the present invention. A preferred oligonucleotide of the present invention has a maximum size of about 100 nucleotides. The present invention includes oligonucleotides that can be used as, for example, probes to identify nucleic acid molecules encoding immunogenic T. gondii proteins, primers to produce nucleic acid molecules encoding immunogenic T. gondii proteins, or reagents to inhibit immunogenic T. gondii protein production or activity (e.g., as antisense-, triplex formation-, ribozyme- and/or RNA drug-based reagents). The present invention also includes the use of such oligonucleotides to protect animals from disease using one or more of such technologies. Appropriate oligonucleotide-containing compositions can be administered to an animal using techniques known to those skilled in the art.

One embodiment of the present invention includes a recombinant vector, which includes at least one isolated nucleic acid molecule of the present invention, inserted into any vector capable of delivering the nucleic acid molecule into a host cell. Such a vector contains heterologous nucleic acid sequences, that is nucleic acid sequences that are not naturally found adjacent to nucleic acid molecules of the present invention and that preferably are derived from a species other than the species from which the nucleic acid molecule(s) are derived. The vector can be either RNA or DNA, either prokaryotic or eukaryotic, and typically is a virus or a plasmid. Recombinant vectors can be used in the cloning, sequencing, and/or otherwise manipulating of nucleic acid molecule encoding immunogenic T. gondii proteins of the present invention.

One type of recombinant vector, referred to herein as a recombinant molecule, comprises a nucleic acid molecule of the present invention operatively linked to an expression vector. The phrase operatively linked refers to insertion of a nucleic acid molecule into an expression vector in a manner such that the molecule is able to be expressed when transformed into a host cell. As used herein, an expression vector is a DNA or RNA vector that is capable of transforming a host cell and of effecting expression of a specified nucleic acid molecule. Preferably, the expression vector is also capable of replicating within the host cell. Expression vectors can be operative in either prokaryotic or eukaryotic cells, and are typically viruses or plasmids. Expression vectors of the present invention include any vectors that function (i.e., direct gene expression) in recombinant cells of the present invention, including in bacterial, fungal, parasite, insect, other animal, and plant cells. Preferred expression vectors of the present invention can direct gene expression in bacterial, yeast, T. gondii and mammalian cells, and more preferably in the cell types disclosed herein.

In particular, expression vectors of the present invention contain regulatory sequences such as transcription control sequences, translation control sequences, origins of replication, and other regulatory sequences that are compatible with the recombinant cell and that control the expression of nucleic acid molecules of the present invention. In particular, recombinant molecules of the present invention include transcription control sequences. Transcription control sequences are sequences which control the initiation, elongation, and termination of transcription. Particularly important transcription control sequences are those which control transcription initiation, such as promoter, enhancer, operator and repressor sequences. Suitable transcription control sequences include any transcription control sequence that can function in at least one of the recombinant cells of the present invention. A variety of such transcription control sequences are known to those skilled in the art. Preferred transcription control sequences include those which function in bacterial, yeast, helminth or other endoparasite, or insect and mammalian cells, such as, but not limited to, tac, lac, trp, trc, oxy-pro, omp/lpp, rrnB, bacteriophage lambda (such as lambda p_(L) and lambda p_(R) and fusions that include such promoters), bacteriophage T7, T7lac, bacteriophage T3, bacteriophage SP6, bacteriophage SP01, metallothionein, alpha-mating factor, Pichia alcohol oxidase, alphavirus subgenomic promoter, antibiotic resistance gene, baculovirus, Heliothis zea insect virus, vaccinia virus, herpesvirus, raccoon poxvirus, other poxvirus, adenovirus, cytomegalovirus (such as immediate early promoter), simian virus 40, retrovirus, actin, retroviral long terminal repeat, Rous sarcoma virus, heat shock, phosphate and nitrate transcription control sequences as well as other sequences capable of controlling gene expression in prokaryotic or eukaryotic cells. Additional suitable transcription control sequences include tissue-specific promoters and enhancers as well as lymphokine-inducible promoters (e.g., promoters inducible by interferons or interleukins). Transcription control sequences of the present invention can also include naturally occurring transcription control sequences naturally associated with T. gondii.

Suitable and preferred nucleic acid molecules to include in recombinant vectors of the present invention are as disclosed herein. Preferred nucleic acid molecules to include in recombinant vectors, and particularly in recombinant molecules, include those cited in Table 1. Particularly preferred recombinant molecules of the present invention include those recombinant molecules, the production of which are described in the Examples section.

Recombinant molecules of the present invention may also (a) contain secretory signals (i.e., signal segment nucleic acid sequences) to enable an expressed T. gondii protein of the present invention to be secreted from the cell that produces the protein and/or (b) contain fusion sequences which lead to the expression of nucleic acid molecules of the present invention as fusion proteins. Examples of suitable signal segments include any signal segment capable of directing the secretion of a protein of the present invention. Preferred signal segments include, but are not limited to, tissue plasminogen activator (t-PA), interferon, interleukin, growth hormone, histocompatibility and viral envelope glycoprotein signal segments. Suitable fusion segments encoded by fusion segment nucleic acids are disclosed herein. In addition, a nucleic acid molecule of the present invention can be joined to a fusion segment that directs the encoded protein to the proteosome, such as a ubiquitin fusion segment. Eukaryotic recombinant molecules may also include intervening and/or untranslated sequences surrounding and/or within the nucleic acid sequences of nucleic acid molecules of the present invention.

Another embodiment of the present invention includes a recombinant cell comprising a host cell transformed with one or more recombinant molecules of the present invention. Transformation of a nucleic acid molecule into a cell can be accomplished by any method by which a nucleic acid molecule can be inserted into the cell. Transformation techniques include, but are not limited to, transfection, electroporation, microinjection, lipofection, adsorption, and protoplast fusion. A recombinant cell may remain unicellular or may grow into a tissue, organ or a multicellular organism. Transformed nucleic acid molecules of the present invention can remain extrachromosomal or can integrate into one or more sites within a chromosome of the transformed (i.e., recombinant) cell in such a manner that their ability to be expressed is retained. Preferred nucleic acid molecules with which to transform a cell include nucleic acid molecules encoding immunogenic T. gondii proteins disclosed herein. Particularly preferred nucleic acid molecules with which to transform a cell include those listed in Table 1.

Suitable host cells to transform include any cell that can be transformed with a nucleic acid molecule of the present invention. Host cells can be either untransformed cells or cells that are already transformed with at least one nucleic acid molecule (e.g., nucleic acid molecules encoding one or more proteins of the present invention and/or other proteins useful in the production of multivalent vaccines). Host cells of the present invention either can be endogenously (i.e., naturally) capable of producing T. gondii proteins of the present invention or can be capable of producing such proteins after being transformed with at least one nucleic acid molecule of the present invention. Host cells of the present invention can be any cell capable of producing at least one protein of the present invention, and include bacterial, fungal (including yeast), parasite (including helminth, protozoa and ectoparasite), insect, other animal and plant cells. Preferred host cells include bacterial, mycobacterial, yeast, protozoan, helminth, insect and mammalian cells. More preferred host cells include Salmonella, Escherichia, Bacillus, Listeria, Saccharomyces, Spodoptera, Mycobacteria, Trichoplusia, BHK (baby hamster kidney) cells, MDCK cells (Madin-Darby canine kidney cell line), CRFK cells (Crandell feline kidney cell line), CV-1 cells (African monkey kidney cell line used, for example, to culture raccoon poxvirus), COS (e.g., COS-7) cells, and Vero cells. Particularly preferred host cells are Escherichia coli, including E. coli K-12 derivatives; Salmonella typhi; Salmonella typhimurium, including attenuated strains such as UK-1 _(χ)3987 and SR-11 _(χ)4072; Spodoptera frugiperda; Trichoplusia ni; BHK cells; MDCK cells; CRFK cells; CV-1 cells; COS cells; Vero cells; and non-tumorigenic mouse myoblast G8 cells (e.g., ATCC CRL 1246). Additional appropriate mammalian cell hosts include other kidney cell lines, other fibroblast cell lines (e.g., human, murine or chicken embryo fibroblast cell lines), myeloma cell lines, Chinese hamster ovary cells, mouse NIH/3T3 cells, LMTK³¹ cells and/or HeLa cells. In one embodiment, the proteins may be expressed as heterologous proteins in myeloma cell lines employing immunoglobulin promoters.

A recombinant cell is preferably produced by transforming a host cell with one or more recombinant molecules, each comprising one or more nucleic acid molecules of the present invention operatively linked to an expression vector containing one or more transcription control sequences, examples of which are disclosed herein.

A recombinant cell of the present invention includes any cell transformed with at least one of any nucleic acid molecule of the present invention. Suitable and preferred nucleic acid molecules as well as suitable and preferred recombinant molecules with which to transfer cells are disclosed herein. Particularly preferred recombinant cells include those recombinant cells, the production of which are disclosed in the Examples section.

Recombinant cells of the present invention can also be co-transformed with one or more recombinant molecules including a nucleic acid molecule encoding at least one immunogenic T. gondii protein of the present invention and one or more other nucleic acid molecules encoding other protective compounds, as disclosed herein (e.g., to produce multivalent vaccines).

Recombinant DNA technologies can be used to improve expression of transformed nucleic acid molecules by manipulating, for example, the number of copies of the nucleic acid molecules within a host cell, the efficiency with which those nucleic acid molecules are transcribed, the efficiency with which the resultant transcripts are translated, and the efficiency of post-translational modifications. Recombinant techniques useful for increasing the expression of nucleic acid molecules of the present invention include, but are not limited to, operatively linking nucleic acid molecules to high-copy number plasmids, integration of the nucleic acid molecules into one or more host cell chromosomes, addition of vector stability sequences to plasmids, substitutions or modifications of transcription control signals (e.g., promoters, operators, enhancers), substitutions or modifications of translational control signals (e.g., ribosome binding sites, Shine-Dalgarno sequences), modification of nucleic acid molecules of the present invention to correspond to the codon usage of the host cell, deletion of sequences that destabilize transcripts, and use of control signals that temporally separate recombinant cell growth from recombinant enzyme production during fermentation. The activity of an expressed recombinant protein of the present invention may be improved by fragmenting, modifying, or derivatizing nucleic acid molecules encoding such a protein.

Isolated T. gondii proteins of the present invention can be produced in a variety of ways, including production and recovery of natural proteins, production and recovery of recombinant proteins, and chemical synthesis of the proteins. In one embodiment, an isolated protein of the present invention is produced by culturing a cell capable of expressing the protein under conditions effective to produce the protein, and recovering the protein. A preferred cell to culture is a recombinant cell of the present invention. Effective culture conditions include, but are not limited to, effective media, bioreactor, temperature, pH and oxygen conditions that permit protein production. An effective medium refers to any medium in which a cell is cultured to produce an immunogenic T. gondii protein of the present invention. Effective media typically comprise an aqueous medium having assimilable carbon, nitrogen and phosphate sources, and appropriate salts, minerals, metals and other nutrients, such as vitamins. Cells of the present invention can be cultured in conventional fermentation bioreactors, shake flasks, test tubes, microtiter dishes, and petri plates. Culturing can be carried out at a temperature, pH and oxygen content appropriate for a recombinant cell. Suitable culturing conditions are within the expertise of one of ordinary skill in the art. Examples of suitable conditions are included in the Examples section.

Depending on the vector and host system used for production, resultant proteins of the present invention may either remain within the recombinant cell; be secreted into the fermentation medium; be secreted into a space between two cellular membranes, such as the periplasmic space in E. coli; or be retained on the outer surface of a cell or viral membrane.

The phrase “recovering the protein”, as well as similar phrases, refers to collecting the whole fermentation medium containing the protein and need not imply additional steps of separation or purification. Proteins of the present invention can be purified using a variety of standard protein purification techniques, such as, but not limited to, affinity chromatography, ion exchange chromatography, filtration, electrophoresis, hydrophobic interaction chromatography, gel filtration chromatography, reverse phase chromatography, concanavalin A chromatography, chromatofocusing and differential solubilization. Proteins of the present invention are preferably retrieved in “substantially pure” form. As used herein, “substantially pure” refers to a purity that allows for the effective use of the protein as a composition to inhibit T. gondii oocyst shedding in a cat due to infection with T. gondii, or for preventing T. gondii infection in an animal, or as a diagnostic reagent. A composition for inhibiting T. gondii oocyst shedding in a cat due to infection with T. gondii animals, or for preventing T. gondii infection in an animal for example, should exhibit no substantial toxicity and preferably should be capable of stimulating the production of antibodies in a treated animal.

The present invention also includes isolated (i.e., removed from their natural milieu) antibodies that selectively bind to an immunogenic T. gondii protein of the present invention or a mimetope thereof (e.g., anti-T. gondii antibodies). As used herein, the term “selectively binds to” an immunogenic T. gondii protein refers to the ability of antibodies of the present invention to preferentially bind to specified proteins and mimetopes thereof of the present invention. Binding can be measured using a variety of methods standard in the art including enzyme immunoassays (e.g., ELISA), immunoblot assays, etc.; see, for example, Sambrook et al., ibid., and Harlow, et al., 1988, Antibodies, a Laboratory Manual, Cold Spring Harbor Labs Press; Harlow et al., ibid., is incorporated by reference herein in its entirety. An anti-T. gondii antibody of the present invention preferably selectively binds to an immunogenic T. gondii protein in such a way as to inhibit the function of that protein.

Isolated antibodies of the present invention can include antibodies in any bodily fluid that has been collected (e.g., recovered) from an animal. Suitable bodily fluids include, but are not limited to, blood, serum, plasma, urine, tears, aqueous humor, central nervous system fluid (CNF), saliva, lymph, nasal secretions, milk and feces. Thus, serum containing antibodies (i.e., antiserum) or mucosal secretions, such as intestinal secretions, are examples of isolated antibodies. Other embodiments of antibodies include antibodies that have been purified to varying degrees. Antibodies of the present invention can be polyclonal or monoclonal, or can be functional equivalents such as antibody fragments and genetically-engineered antibodies, including single chain antibodies or chimeric antibodies that can bind to one or more epitopes.

A preferred method to produce antibodies of the present invention includes (a) administering to an animal an effective amount of a protein, peptide or mimetope thereof of the present invention to produce the antibodies and (b) recovering the antibodies. In another method, antibodies of the present invention are produced recombinantly using techniques as heretofore disclosed to produce T. gondii proteins of the present invention. Antibodies raised against defined proteins or mimetopes can be advantageous because such antibodies are not substantially contaminated with antibodies against other substances that might otherwise cause interference in a diagnostic assay or side effects if used in a composition for inhibiting T. gondii oocyst shedding in a cat due to infection with T. gondii, or for preventing T. gondii infection in an animal.

Antibodies of the present invention have a variety of potential uses that are within the scope of the present invention. For example, such antibodies can be used (a) as compounds to passively immunize a cat in order to inhibit the cat from shedding T. gondii oocysts, (b) as reagents in assays to detect infection by T. gondii and/or (c) as tools to screen expression libraries and/or to recover desired proteins of the present invention from a mixture of proteins and other contaminants.

One embodiment of the present invention includes a method for identifying a nucleic acid molecule encoding an immunogenic T. gondii protein. According to this method, antiserum (comprising either monoclonal or polyclonal antibodies) raised against a T. gondii developmental stage or stages, or against oocysts, is used to immunoscreen a T. gondii genomic expression library or a T. gondii cDNA expression library, and a nucleic acid molecule expressing an immunogenic T. gondii protein is identified by its ability to selectively bind to at least one antibody within the antiserum. As used herein, the term immunoscreen refers to a method in which antibodies are mixed with a sample to determine whether the sample contains a substance to which the antibodies can selectively bind. A substance is identified by its ability to selectively bind to such antibodies. Although general methods to accomplishing immunoscreening of expression libraries are known to those skilled in the art, the exact method to use such a technique to identify T. gondii immunogenic proteins was not previously known. The present invention includes the identification of antisera that are useful in the identification and isolation of nucleic acid molecules encoding T. gondii immunogenic proteins. Such antisera include antiserum raised against T. gondii oocysts, antiserum raised against T. gondii bradyzoites, antiserum raised against T. gondii infected cat gut, and antiserum isolated from a cat immune to T. gondii infection. In one embodiment, antiserum as described above is enriched for antibodies specific to T. gondii gametogenic stages. In a preferred embodiment, polyclonal antiserum is produced by exposing an animal to a T. gondii antigen or antigens, then isolating the antiserum from the animal so exposed. Methods to produce and use the various antisera are described in the Examples section.

In another embodiment, immunoscreening as described above can be used to identify an immunogenic T. gondii protein. According to this method, antiserum as described above is used to immunoscreen a T. gondii genomic expression library or cDNA expression library, and an immunogenic T. gondii protein is identified. T. gondii immunogenic proteins can also be identified by immunoscreening preparations containing T. gondii antigens (e.g., T. gondii oocysts, bradyzoites, infected cat guts) using antiserum as described above.

Nucleic acid molecules and proteins identified using such techniques can be isolated (i.e., recovered) and purified to a desired state of purity using techniques known to those skilled in the art.

One embodiment of the present invention is a composition that, when administered to a cat in an effective manner, is capable of preventing that cat from shedding T. gondii oocysts. Compositions of the present invention, useful for inhibiting T. gondii oocyst shedding in a cat due to infection with T. gondii (i.e., infection with T. gondii causes oocyst shedding in cats), include at least one of the following protective compounds: an isolated immunogenic T. gondii protein or a mimetope thereof, an isolated nucleic acid molecule that hybridizes under stringent hybridization conditions with a nucleic acid molecule comprising one of the nucleic acid molecules and/or nucleic acid sequences cited in Table 1, an isolated antibody that selectively binds to an immunogenic T. gondii protein, an inhibitor of T. gondii function identified by its ability to bind to an immunogenic T. gondii protein and thereby impede development and/or the production of oocysts, or a mixture thereof (i.e., combination of at least two of the compounds). As used herein, a protective compound refers to a compound that, when administered to a cat in an effective manner, is able to inhibit the cat from shedding T. gondii oocysts upon infection with T. gondii. The term protective compound also refers to a compound that, when administered to a cat or other animal, including a human, in an effective manner, is able to prevent or ameliorate disease caused by infection with T. gondii. Examples of proteins, nucleic acid molecules, antibodies and inhibitors of the present invention are disclosed herein.

The present invention also includes a composition comprising at least one T. gondii protein-based compound of the present invention in combination with at least one additional compound protective against one or more infectious agents. Examples of such compounds and infectious agents are disclosed herein.

Compositions of the present invention that are useful for preventing T. gondii infection can be administered to any animal susceptible to such therapy, preferably to mammals.

In order to inhibit a cat from shedding T. gondii oocysts, a composition of the present invention is administered to the cat in a manner effective to inhibit that cat from shedding T. gondii oocysts. In a preferred embodiment, compositions of the present invention are administered to cats prior to infection in order to prevent oocyst shedding (i.e., as a preventative vaccine). In another embodiment, compositions of the present invention can be administered to animals after infection in order to treat disease caused by T. gondii (e.g., as a therapeutic vaccine).

Compositions of the present invention, useful for inhibiting T. gondii oocyst shedding in a cat due to infection with T. gondii, or for preventing T. gondii infection in an animal, can be formulated in an excipient that the animal to be treated can tolerate. Examples of such excipients include water, saline, Ringer's solution, dextrose solution, Hank's solution, and other aqueous physiologically balanced salt solutions. Nonaqueous vehicles, such as fixed oils, sesame oil, ethyl oleate, or triglycerides may also be used. Other useful formulations include suspensions containing viscosity enhancing agents, such as sodium carboxymethylcellulose, sorbitol, or dextran. Excipients can also contain minor amounts of additives, such as substances that enhance isotonicity and chemical stability. Examples of buffers include phosphate buffer, bicarbonate buffer and Tris buffer, while examples of preservatives include thimerosal, -or o-cresol, formalin and benzyl alcohol. Standard formulations can either be liquid injectables or solids which can be taken up in a suitable liquid as a suspension or solution for injection. Thus, in a non-liquid formulation, the excipient can comprise dextrose, human serum albumin, preservatives, etc., to which sterile water or saline can be added prior to administration.

In one embodiment of the present invention, a composition useful for inhibiting oocyst shedding in a cat infected with T. gondii, or for preventing T. gondii infection in an animal, can include an adjuvant. Adjuvants are agents that are capable of enhancing the immune response of an animal to a specific antigen. Suitable adjuvants include, but are not limited to, cytokines, chemokines, and compounds that induce the production of cytokines and chemokines (e.g., granulocyte macrophage colony stimulating factor (GM-CSF), granulocyte colony stimulating factor (G-CSF), macrophage colony stimulating factor (M-CSF), colony stimulating factor (CSF), erythropoietin (EPO), interleukin 2 (IL-2), interleukin-3 (IL-3), interleukin 4 (IL-4), interleukin 5 (IL-5), interleukin 6 (IL-6), interleukin 7 (IL-7), interleukin 8 (IL-8), interleukin 10 (IL-10), interleukin 12 (IL-12), interferon gamma, interferon gamma inducing factor I (IGIF), transforming growth factor beta, RANTES (regulated upon activation, normal T-cell expressed and presumably secreted), macrophage inflammatory proteins (e.g., MIP-1 alpha and MIP-1 beta), and Leishmania elongation initiating factor (LEIF)); bacterial components (e.g., endotoxins, in particular superantigens, exotoxins and cell wall components); aluminum-based salts; calcium-based salts; silica; polynucleotides; toxoids; serum proteins, viral coat proteins; block copolymer adjuvants (e.g., Hunter's Titermax™ adjuvant (Vaxcel™, Inc. Norcross, Ga.), Ribi adjuvants (Ribi ImmunoChem Research, Inc., Hamilton, Mont.); and saponins and their derivatives (e.g., Quil A (Superfos Biosector A/S, Denmark). Protein adjuvants of the present invention can be delivered in the form of the protein themselves or of nucleic acid molecules encoding such proteins using the methods described herein.

In one embodiment of the present invention, a composition useful for inhibiting oocyst shedding in a cat infected with T. gondii, or for preventing T. gondii infection in an animal, can include a carrier. Carriers include compounds that increase the half-life of a composition of the present invention in the treated animal. Suitable carriers include, but are not limited to, polymeric controlled release vehicles, biodegradable implants, liposomes, bacteria, viruses, other cells, oils, esters, and glycols.

One embodiment of the present invention is a controlled release formulation that is capable of slowly releasing a composition of the present invention into an animal. As used herein, a controlled release formulation comprises a composition of the present invention in a controlled release vehicle. Suitable controlled release vehicles include, but are not limited to, biocompatible polymers, other polymeric matrices, capsules, microcapsules, microparticles, bolus preparations, osmotic pumps, diffusion devices, liposomes, lipospheres, and transdermal delivery systems. Other controlled release formulations of the present invention include liquids that, upon administration to an animal, form a solid or a gel in situ. Preferred controlled release formulations are biodegradable (i.e., bioerodible).

A preferred controlled release formulation of the present invention is capable of releasing a composition of the present invention into the blood of the treated animal at a constant rate sufficient to attain dose levels of the composition effective to either inhibit oocyst shedding by cats, or to protect an animal from disease caused by T. gondii. The composition is preferably released over a period of time ranging from about 1 to about 12 months. A controlled release formulation of the present invention is capable of effecting a treatment preferably for at least about 1 month, more preferably for at least about 3 months, even more preferably for at least about 6 months, even more preferably for at least about 9 months, and even more preferably for at least about 12 months.

Compositions of the present invention can be administered to cats prior to infection in order to inhibit oocyst shedding, and/or can be administered to cats or other animals, including humans, before infection in order to prevent disease caused by T. gondii infection, or after infection in order to treat disease caused by T. gondii. For example, nucleic acid molecules, proteins, mimetopes thereof, antibodies thereof, and inhibitors thereof can be used to treat or prevent disease caused by T. gondii infection. Acceptable protocols to administer compositions of the present invention include individual dose size, number of doses, frequency of dose administration, and mode of administration. Determination of such protocols can be accomplished by those skilled in the art. A suitable single dose is a dose that is capable of protecting an animal from disease when administered one or more times over a suitable time period. For example, a preferred single dose of a protein, mimetope or antibody composition of the present invention is from about 1 microgram (μg) to about 10 milligrams (mg) of the composition per kilogram body weight of the animal. Booster doses can be administered from about 2 weeks to several years after the original administration. Booster administrations preferably are administered when the immune response of the animal becomes insufficient to protect the animal from disease. A preferred administration schedule is one in which from about 10 μg to about 1 mg of the composition per kg body weight of the animal is administered from about one to about two times over a time period of from about 2 weeks to about 12 months. Modes of administration can include, but are not limited to, injection, oral administration, inhalation, nasal administration, intraocular administration, anal administration, topical administration, particle bombardment, and intradermal scarification. Preferred injection methods include intradermal, intramuscular, subcutaneous, intravenous methods, with intradermal injection and intramuscular injection being more preferred. A particularly preferred method is mucosal administration.

According to one embodiment, a nucleic acid molecule of the present invention can be administered to an animal in a fashion to enable expression of that nucleic acid molecule into a protective protein or protective RNA (e.g., antisense RNA, ribozyme, triple helix forms or RNA drug) in the animal. Nucleic acid molecules can be delivered to an animal in a variety of methods including, but not limited to, (a) administering a nucleic acid not packaged in a viral coat or cell as a genetic vaccine (e.g., as “naked” DNA or RNA molecules with or without a non-viral/non-cellular carrier (e.g., liposome, hydrogel, etc.) or (b) administering a nucleic acid molecule packaged as a recombinant virus vaccine or as a recombinant cell vaccine (i.e., the nucleic acid molecule is delivered by a viral or cellular vehicle).

A genetic vaccine of the present invention includes a recombinant molecule of the present invention. As such, a genetic vaccine comprises at least one isolated nucleic acid molecule encoding an immunogenic T. gondii protein operatively linked to a eukaryotic or prokaryotic transcription control region. A genetic vaccine can be either RNA or DNA, can have components from prokaryotic as well as eukaryotic sources, and can have the ability, by methods described herein, to enter either eukaryotic or prokaryotic cells and direct expression of isolated nucleic acid molecules of the present invention in those cells. In a preferred embodiment, a genetic vaccine of the present invention includes a recombinant virus genome (i.e., a nucleic acid molecule of the present invention ligated to at least one viral genome in which transcription of the nucleic acid molecule is directed either by a transcription control region on the genome or a separate transcription control region) or a recombinant plasmid that includes a nucleic acid molecule of the present invention ligated into a vector that is not a viral genome such that the nucleic acid molecule is operatively linked to a transcription control region.

A genetic vaccine of the present invention includes a nucleic acid molecule of the present invention and preferably includes a recombinant molecule of the present invention that preferably is replication, or otherwise amplification, competent. A genetic vaccine of the present invention can comprise one or more nucleic acid molecules of the present invention in the form of, for example, a dicistronic recombinant molecule. Preferred genetic vaccines include at least a portion of a viral genome (i.e., a viral vector) and a nucleic acid molecule of the present invention. Preferred viral vectors include those based on alphaviruses, poxviruses, adenoviruses, adeno-associated viruses, herpesviruses, picomaviruses, and retroviruses, with those based on alphaviruses (e.g., Sindbis virus or Semliki forest virus), picornaviruses (e.g., poliovirus or mengovirus), species-specific herpesviruses and poxviruses being particularly preferred. Any suitable transcription control sequence can be used, including those disclosed as suitable for protein production. Particularly preferred transcription control sequences include cytomegalovirus immediate early (preferably in conjunction with Intron-A), Rous sarcoma virus long terminal repeat, and tissue-specific transcription control sequences, as well as transcription control sequences endogenous to viral vectors if viral vectors are used. The incorporation of a “strong” polyadenylation signal is also preferred.

Genetic vaccines of the present invention can be administered in a variety of ways, with intramuscular, subcutaneous, intradermal, transdermal, intraocular, intranasal and oral routes of administration being preferred. A preferred single dose of a genetic vaccine ranges from about 1 nanogram (ng) to about 600 μg, depending on the route of administration and/or method of delivery, as can be determined by those skilled in the art. Suitable delivery methods include, for example, by injection, by gene gun, as drops, as inhaled aerosols, ingested in microparticles or microcapsules, and/or topical delivery. Genetic vaccines of the present invention can be contained in an aqueous excipient (e.g., phosphate buffered saline) alone or in a carrier (e.g., lipid-based vehicles).

A recombinant virus vaccine of the present invention includes a recombinant molecule of the present invention that is packaged in a viral coat and that can be expressed in an animal after administration. Preferably, the recombinant molecule is packaging—or replication—deficient and/or encodes an attenuated virus. A number of recombinant viruses can be used, including, but not limited to, those based on alphaviruses, poxviruses, adenoviruses, herpesviruses, picomaviruses, and retroviruses. Preferred recombinant virus vaccines are those based on alphaviruses (e.g., Sindbis virus), picomaviruses (e.g., poliovirus, mengovirus), raccoon poxviruses, species-specific herpesviruses and species-specific poxviruses. An example of methods to produce and use alphavirus recombinant virus vaccines are disclosed in PCT Publication No. WO 94/17813, by Xiong et al., published Aug. 18, 1994, which is incorporated by reference herein in its entirety.

When administered to an animal, a recombinant virus vaccine of the present invention infects cells within the immunized animal and directs the production of a protective protein or RNA nucleic acid molecule that is capable of preventing a cat from shedding oocysts as disclosed herein. For example, a recombinant virus vaccine comprising a nucleic acid molecule encoding an immunogenic T. gondii protein of the present invention is administered according to a protocol that results in the subject cat producing a sufficient immune response to inhibit shedding T. gondii oocysts. A preferred single dose of a recombinant virus vaccine of the present invention is from about 1×10⁴ to about 1×10⁸ virus plaque forming units (pfu) per kilogram body weight of the animal. Administration protocols are similar to those described herein for protein-based vaccines, with subcutaneous, intramuscular, intraocular, intranasal and oral administration routes being preferred.

A recombinant cell vaccine of the present invention includes recombinant cells of the present invention that express at least one protein of the present invention. Preferred recombinant cells for this embodiment include Salmonella, E. coli, Listeria, Mycobacterium, S. frugiperda, yeast, (including Saccharomyces cerevisiae and Pichia pastoris), BHK, CV-1, myoblast G8, COS (e.g., COS-7), Vero, MDCK and CRFK recombinant cells. Recombinant cell vaccines of the present invention can be administered in a variety of ways but have the advantage that they can be administered orally, preferably at doses ranging from about 10⁸ to about 10¹² cells per kilogram body weight. Administration protocols are similar to those described herein for protein-based vaccines. Recombinant cell vaccines can comprise whole cells, cells stripped of cell walls or cell lysates.

The efficacy of a composition of the present invention to inhibit oocyst shedding caused by T. gondii can be tested in a variety of ways including, but not limited to, detection of protective antibodies (using, for example, proteins or mimetopes of the present invention), detection of cellular immunity within the treated animal, or challenge of the treated animal with T. gondii to determine whether the treated animal is resistant to oocyst shedding. Challenge studies can include direct administration of T. gondii tachyzoites or tissue cysts or sporulated oocysts (the infective stages) to the treated animal. In one embodiment, compositions of the present invention can be tested in animal models such as mice. Such techniques are known to those skilled in the art.

One preferred embodiment of the present invention is the use of immunogenic T. gondii proteins, nucleic acid molecules encoding immunogenic T. gondii proteins, antibodies and inhibitors of the present invention, to inhibit a cat from shedding oocysts. It is particularly preferred to prevent intestinal stages of the parasite from developing into oocysts. Preferred compositions are those that are able to inhibit at least one step in the portion of the parasite's development cycle that occurs in the intestines prior to the development of oocysts. In cats infected with tissue cysts, for example, the prepatent period for oocyst shedding is three to five days. When cats are infected with sporulated oocysts, for example, the prepatent period can range from 19 to 45 days. Particularly preferred compositions useful for inhibiting oocyst shedding in a cat infected with T. gondii include T. gondii-based compositions of the present invention. Such compositions include nucleic acid molecules encoding immunogenic T. gondii proteins, immunogenic T. gondii proteins and mimetopes thereof and anti-T. gondii antibodies. Compositions of the present invention are administered to cats in a manner effective to inhibit the cats from shedding T. gondii oocysts. Additional protection may be obtained by administering additional protective compounds, including other T. gondii proteins, nucleic acid molecules and antibodies, as disclosed herein.

It is also within the scope of the present invention to use isolated proteins, mimetopes, nucleic acid molecules and antibodies of the present invention as diagnostic reagents to detect infection by T. gondii. These diagnostic reagents can further be supplemented with additional compounds that can specifically detect any or all phases of the parasite's life cycle. General methods to use diagnostic reagents in the diagnosis of disease are known to those skilled in the art. A method or a kit for the detection of T. gondii infection could be combined with reagents for the detection of additional infectious agents, for example viruses (e.g. Coronaviruses), bacteria (e.g. Campylobacter, Clostridium, Salmonella), protozoa (e.g. Cryptosporidium, Giardia, Isospora, Hammondia, Sarcocystis, Besnoitia, Microsporidium), and/or multi-cellular organisms (e.g. Teania, Anclostoma, Toxocara, Physaloptera, Paragonimus, Strongyloides, Trichuris).

Another embodiment of the present invention is a method to detect microscopic parasite cysts or oocysts in feces using PCR amplification techniques. By microscopic, it is meant cysts or oocysts that are too small to be conveniently detected by simple visual observation of the feces. Preferred organisms to be detected include oocysts from infectious protozoan parasites including members of the apicomplexa and others including, for example, Toxoplasma, Cryptosporidium, Isospora, Giardia, Eimeria, Hammondia, Sarcocystis, Besnoitia, Microsporidium. Additional infectious agents to detect include, for example, viruses (e.g. Coronaviruses), bacteria (e.g. Campylobacter, Clostridium, Salmonella), and/or multi-cellular organisms (e.g. Teania, Anclostoma, Toxocara, Physaloptera, Paragonimus, Strongyloides, Trichuris). Particularly preferred oocysts to be detected include Toxoplasma and Cryptosporidium oocysts. Preferred cysts to be detected include any cysts capable of binding to a solid support and remaining bound to the support through a washing step. Preferred cysts include Giardia cysts. According to this embodiment of the invention, a solid support that is capable of binding cysts or oocysts is contacted with a sample of feces, which may or may not have been partially solubilized first in an aqueous solution, and the sample of feces is allowed to dry on the support. The solid support can be of any material to which the cysts or oocyts will bind and remain bound during washing in an aqueous solution. The support can comprise one or more compounds that aid in PCR amplification of the sample, for example by allowing the inhibitors to be released in the wash step, or by binding inhibitors of PCR that are not released in the elution step, or by otherwise inactivating inhibitors of PCR amplification. Preferred supports comprise a paper substrate to which the oocysts or cysts can bind. Preferred supports include IsoCodeJ™ Stix, or their equivalent, S&S® #903™, or their equivalent, or Nobuto Blood Filter Strips, or their equivalent. The support, or the portion of the support contacted with the sample of feces, is preferably small enough to fit into a container convenient for the wash step; eg., a size that will fit into a 1.5. ml conical centrifuge tube. The portion of the support that is contacted with the sample of feces can be removed from the rest of the support in order to achieve a convenient size. The portion of the support that includes the dried sample of feces is then washed with an aqueous solution. In a preferred embodiment the aqueous solution is water, preferably distilled water. The solution can comprise one or more compounds that aid in PCR amplification of the sample, for example by inactivating or removing inhibitors of PCR amplification. DNA associated with the sample is eluted by adding an aqueous solution to the support and then heating the solution to a temperature sufficient to elute DNA from the sample, into the solution. In a preferred embodiment, the aqueous solution into which the sample is eluted is water, preferably distilled water. This solution can comprise one or more compounds that aid in PCR amplification of the sample, for example by inactivating inhibitors of PCR amplification, or by improving reaction conditions for the PCR reaction. The heating step comprises heating to a temperature sufficient to elute DNA from the sample. A preferred temperature is approximately 95° C. Oocyst or cyst-specific DNA in the elution solution is then PCR amplified using primers specific to the oocysts or cysts being detected. The amplification products indicative of oocysts or cysts are then detected using any means available for the detection of PCR amplification products. These can include, for example, separation and observation of the PCR products on a gel, or detection and/or quantification by PCR ELISA. In a preferred embodiment of the present invention, nucleic acid molecules of the present invention are used for the detection of T. gondii oocysts in cat feces by PCR amplification using nucleic acid molecules of the present invention as primers. According to the present invention, detection of oocysts can be accomplished by direct analysis of feces. Methods to conduct such an assay are described further in the Examples section.

The following examples are provided for the purposes of illustration and are not intended to limit the scope of the present invention.

EXAMPLES

It is to be noted that the examples include a number of molecular biology, microbiology, immunology and biochemistry techniques considered to be familiar to those skilled in the art. Disclosure of such techniques can be found, for example, in Sambrook et al., ibid. and Ausubel, et al., 1993, Current Protocols in Molecular Biology, Greene/Wiley Interscience, New York, N.Y., and related references. Ausubel, et al, ibid. is incorporated by reference herein in its entirety. DNA sequence analysis and protein translations were carried out using the DNAsis program (available from Hitachi Software, San Bruno, Calif.) or MacVector program (available from International Biotechnologies, Inc., Hew Haven, Conn.). It should also be noted that since nucleic acid sequencing technology, and in particular the sequencing of PCR products, is not entirely error-free, that the nucleic acid sequences presented herein represent apparent nucleic acid sequences of the nucleic acid molecules encoding immunogenic T. gondii proteins of the present invention.

Example 1

This example discloses the construction of a T. gondii genomic expression library.

Pure mRNA from T. gondii parasite present in the infected cat gut cannot presently be obtained. Therefore, a true cDNA library for the gametogenic stages cannot be produced. In order to get around the unavailability of pure mRNA from gut stages of T. gondii, a genomic expression library in λ gt11 was constructed using Toxoplasma genomic DNA obtained from tachyzoites produced in tissue culture. This library represented genes expressed at all stages of the Toxoplasma life cycle, including the gametogenic genes.

Construction of the library was modeled on procedures used previously for standard lambda cloning (see, for example, Sambrook, et al., ibid.). In brief, a series of high frequency cutting restriction enzymes were used to generate near random fragments of DNA representing the tachyzoite genome. DNA fragments of approximately 500 to 2000 bp were size selected and then inserted in frame with the expressed fusion protein in λ gt11. Construction of this library is described in greater detail below.

Standard Production of Tachyzoites from liquid nitrogen stocks: Liquid nitrogen stocks of Toxoplasma tachyzoites (TZ) (1 ml samples at 2-4×10⁶ TZ/ml) were thawed in a 37° C. waterbath. The samples were thawed completely without attaining 37° C. Room temperature TMM (DMEM+3% FBS+0.1 ml 50 mg/ml gentamicin per 100 ml media) was added to the thawed sample according to the following timetable: 0.3 ml added at 0 minutes; 0.6 ml added at 5 minutes; 1.5 ml added at 10 minutes. The samples were maintained at room temperature for 5 minutes longer, then centrifuged for 10 minutes at 2,000 RPM at room temperature. The supernatant was discarded and the pellet resuspended in 12 ml of TMM.

Human foreskin fibroblasts (HSF)cells (ATCC CRL 1637) were infected with the thawed tachyzoites as follows: Passage 15-25 HSF cells were split 1:3 and grown to confluence in a T75 flask with DMEM+10% FBS (fetal bovine serum, available from Summit Biotechnology, Fort Collins, Colo.)+0.1 ml gentamicin per 100 ml media in an incubator at 37° C. with 5% CO₂. HSF cells were infected by replacing the media with the thawed tachyzoites in TMM. Infections were allowed to progress until 30-50% of the cell monolayer was destroyed. The medium in the infected T75 flask was replaced with fresh TMM the day before harvesting tachyzoites for expansion of the culture.

Passage 19-25 HSF cells cultured in roller bottles (850 cm²), were split 1:3 and grown to confluence in a roller bottle incubator apparatus under conditions as described above. The medium from a single roller bottle was decanted and replaced with 100 ml of TMM. The cells in this roller bottle were then infected by adding medium from an infected T75 flask (described above). Infection was allowed to progress until 30-50% of the cell monolayer was destroyed. Fresh TMM was replaced in the infected roller bottle the day before using the supernatant to infect new HSF cells. Four new roller bottles with confluent HSF cells were each infected with 2.5×10⁷ tachyzoites harvested from a previously infected roller bottle. This cycle of infection of four roller bottles, for the purpose of tachyzoite production, was continued on a weekly basis.

Tachyzoite Purification: Extracellular tachyzoites were collected from tissue culture and concentrated. To collect and concentrate tachyzoites, media from roller bottles containing extracellular tachyzoites were poured into 50 ml conical tubes and centrifuged at 2,000 RPM for 10 minutes. The resulting pellets were pooled and the volume was brought up to 50 ml using TMM. The tachyzoites were diluted and counted using a haemacytometer, and then purified by either the CF-11 column method or the nucleopore method as follows:

CF-11 Method of Purifying Tachyzoites: 1.5 g of CF-11 (available from Whatman, Inc., Clifton, N.J.) was mixed throughly in 50 ml of DMEM (no FBS), then added to an econo-column chromatography column (available from Biorad, Hercules, Calif.) and allowed to settle, forming a flat bed. The stopcock was then opened and the excess DMEM was drained until ¼ inch of media remained above the bed. The column was washed by gently adding 50 ml of DMEM and then bringing the media level down to 1 inch above the CF-11 bed. The 50 ml of tachyzoites in TMM (prepared as described above) was then added to the column. The stopcock was opened and the tachyzoites were eluted at a rate of 1 drop/second and collected into 50 ml conical tubes on ice. The media was eluted to ¼ inch above the gel bed. Two additional 5 ml elutions were performed, followed by a 40 ml elution. The 100 ml total eluate was then centrifuged at 2,000 RPM for 10 minutes. The pellets were again pooled by resuspension in 50 ml of DMEM. The tachyzoites were counted and the final number of organisms determined. The tachyzoites were centrifuged at 2,000 rpm for 10 minutes, and the pellet resuspended in 1 ml of Hanks Balanced Salt Solution (HBSS). The tachyzoites were washed 3 times with 1 ml of HBSS by centrifugation at 5000 rpm for 5 minutes in an Eppendorf centrifuge. The pellets were stored at −70° C. until needed.

Nucleopore Method of Purifying Tachyzoites: 47 mm nucleopore units (available from Corning Costar Corp., Cambridge, Mass.) with a polycarbonate 3 um capillary pore membrane were assembled according to manufacturer's specifications. The nucleopore units were then placed on top of an open 50 ml conical tube. Five ml of DMEM was gently forced through the unit using a 30 cc syringe that connects to the top of the nucleopore unit. Twenty-five ml of the extracellular tachyzoite preparation collected from tissue culture in DMEM were passed through the unit by gently pushing on the 30 cc syringe. The maximum number of tachyzoites per nucleopore filter did not exceed 5×10⁸. Filtration was followed by 2, 5 ml washes of DMEM. The nucleopore-purified tachyzoites were then centrifuged at 2,000 RPM for 10 minutes, and the pelleted tachyzoites resuspended in 50 ml of DMEM. The number of tachyzoites was determined by counting in a hemacytometer. Following centrifugation at 2,000 rpm for 10 minutes, the pellet was resuspended in 1 ml HBSS. The tachyzoites were washed 3 times with 1 ml of HBSS by centrifugation at 5,000 rpm for 5 minutes in an Eppendorf centrifuge. The pellets were stored at −70° C. until needed.

Isolation of tachyzoite DNA: DNA from all sources (for example, DNA from Toxoplasma or mammalian tissue) was isolated using standard techniques that can be can be found, for example, in Sambrook et al, ibid. In particular, 2×10⁹ tachyzoites were resuspended in 10 ml of 10 mM Tris, pH 8, 0.1 M EDTA, 0.5% SDS and 20 μg/ml pancreatic RNase (available from Sigma Chemical Co., St. Louis, Mo.). After incubating for 1 hour at 37° C., 1 ml of 5M NaCl and 100 μl of 10 mg/ml proteinase K (available from Boehringer Mannheim Corp., Indianapolis, Ind.) was added and the solution incubated for 3 hours at 50° C. The solution was then extracted with phenol and the DNA precipitated with EtOH.

Preparation of Restricted and Size Selected DNA: Six, four-base recognition site restriction enzymes, Alu I, Mbo I, Msp I, Rsa I, Sau3A I, and Taq^(α)I, (available from New England Biolabs, Beverly, Mass.) and one six-nucleotide recognition site restriction enzyme, Dra I, were used to cut T. gondii genomic DNA to completion. Ten μg of tachyzoite DNA was digested to completion according to the manufacturer's recommended protocols for each enzyme. All seven digests of DNA were combined and electrophoresed on an 0.8% preparative agarose gel. The region of the gel representing double stranded DNA between 500 and 2000 bp was excised and the DNA recovered using a Gene Clean Kit (available from BIO 101 Inc., Vista, Calif.). The eluted DNA was quantitated using an ethidium bromide sensitivity assay on agarose, using calf thymus DNA as a standard. The DNA was then ethanol precipitated.

Addition of Linkers: Four μg of the digested and size selected DNA was then prepared for the addition of linkers by filling in the restriction site overhangs as follows: First, the DNA was resuspended into Klenow buffer, 0.2 mM dNTPs, and Klenow fragment (available from Boehringer Mannheim Biochemicals, Indianapolis, Ind.), and the reaction mix was incubated for 30 minutes at room temperature. The reaction was stopped by incubating the reaction mix at 65° C. for 10 minutes. The DNA was then methylated using standard conditions including 0.1 mM s-adenosylmethionine and 120 units of EcoR I methylase (available from Promega Corp., Madison, Wis.). Following reprecipitation with ethanol, the DNA pellet was dissolved in water and standard T4 DNA ligase buffer (see, for example, Sambrook, et al., ibid.). Three separate EcoR I linkers, constructed to allow three different reading frames (available from Stratagene, La Jolla, Calif.) were added along with T4 DNA ligase (available from Promega, Corp.) and incubated for 16 hours at 15° C. The solution was then diluted directly into EcoR I restriction buffer and EcoR I enzyme (available from Promega Corp.) and incubated at 37° C. for 2 hours. The DNA fragments were separated from the free linkers using a Sephacryl S-400 spin column. The recovered DNA was ethanol precipitated.

Ligation and Packaging of the Restricted DNA: The entire fraction of DNA obtained from the above reaction mixture was ligated into 1 μg of EcoR I-cut and phosphatase treated λ gt11 arms (available from Stratagene) with T4 DNA ligase at 15° C. for 16 hours. The phage was then packaged, titered and amplified using the Gigapack® II Packaging system (available from Stratagene) according to the manufacturer's directions. The resulting library is referred to herein as the Toxoplasma or T. gondii genomic expression library or as the λ gt11:Toxoplasma genomic expression library.

Example 2

This Example discloses a method of isolation of T. gondii nucleic acid molecules encoding immunogenic T. gondii proteins recognized by antisera specific for a Toxoplasma intestinal stage: oocysts. This Example further discloses recombinant nucleic acid molecules, proteins and cells of the present invention.

The final stage of T. gondii gametogony is the unsporulated oocyst. Antisera was raised directly against Toxoplasma oocysts. In addition to the antisera reacting with their respective immunogens, the ability of this antisera to react with T. gondii gametogenic stages in intestinal tissue sections from infected animals was assessed. When used in immunofluorescence assays conducted on infected cat gut samples, the anti-oocyst antisera reacted with various parasite structures in the ICG tissue sections, indicating some cross-reactivity with gametogenic stages. This antisera was made as follows.

Production of antibody to a Toxoplasma intestinal stage:oocysts: Oocysts from a wild type strain designated Maggie, a recent isolate from a cat with Toxoplasmosis (Veterinary Teaching Hospital, Colorado State University, 1993), were obtained from the feces of cats fed mouse brains from mice previously infected with the Maggie strain. The oocysts were purified by the standard method of repeated sugar flotation (described in Dubey, J. P. and Beattie, C. P., (1988) Toxoplasmosis ofAnimals and Man, CRC Press, Boca Raton, Fla.). The oocysts (3×10⁷) were vortexed vigorously in 2 ml of PBS, and then frozen and thawed four times using liquid nitrogen and a 37° C. water bath. Each thaw was followed with vigorous vortexing. The suspension was then sonicated for 20 seconds. The protein concentration of the sonicate was determined as described above, and the suspension stored at −70° until used.

The thawed oocyst suspension was mixed with Freunds Complete Adjuvant for the first injection and Freund's Incomplete Adjuvant for three subsequent boosts. The protein concentrations of each injection in the series were 9 ug, 50 ug, 90 ug, and 90 ug respectively, delivered at four week intervals. The single cat #1959 (designated Queen 4) used for production of antibody to unsporulated oocysts had been orally infected with 100 mouse brain-derived C strain tissue cysts one month before the initial protein injection. Serum obtained from this cat (designated herein as Q4-1959) was analyzed for the presence of antibody specific to T. gondii oocysts by Western blot and immunohistochemistry on a monthly schedule during the injection period.

Immunoscreening the λ gt11:Toxoplasma genomic expression library and isolation of Toxoplasma-specific nucleic acid molecules reactive with antisera to oocysts: Antisera Q4-1959 was used to isolate nucleic acid molecules herein designated OC-1, OC-2, OC-13, OC-14, OC-22, OC-23 as follows: E. coli Y1090 was infected with approximately 5×10⁶ plaque forming units (PFU) of the λ gt11:Toxoplasma genomic expression library, and then evenly spread on 20 LB-amp agarose culture plates. The phage were allowed to grow for about four hours at 37° C. The plates were then overlayed with nitrocellulose filters impregnated with 10 mM isopropyl-B-D-thiogalactoside (IPTG) to induce the expression of the recombinant Toxoplasma protein. The induction proceeded for between 4 hours to overnight and then the filters were marked to establish orientation. The filters were removed and, following several washes in TBST (Tris-buffered saline (TBS)+Tween 20:20 mM Tris, pH 7.5, 150 mM NaCl, 0.5% Tween-20), and an incubation in blocking solution (TBS+5% powdered milk), incubated with a 1:40 dilution of antisera Q4-1959 for about 3 hours at room temperature or overnight at 4° C. After 3 to 5 washes with TBST the filters were incubated with a 1:1000 dilution of alkaline phospatase (AP) -conjugated goat anti-cat IgG (available from Kirkegaard & Perry Laboratories Inc., Gaithersburg, Md.) at room temperature for two hours. The filters were washed two times with TBST and once with TBS. The color indicator was developed in AP buffer (100 mM Tris pH 9, 100 mM NaCl, 5 mM MgCl) containing 0.7% NBT (nitroblue tetrazolium) and 0.3% BCIP (5-bromo-4-chloro-3-indolyl phosphate).

Plaques in the area corresponding to the positive signals were picked into SM buffer (50 mM Tris, pH 7.5, 100 mM NaCl, 8 mM MgSO₄, and 0.01% gelatin) and the phage replated at a lower density. The same screening procedure was repeated three or four times until a pure plaque was isolated. Of the approximately 5×10⁶ plaques screened in this manner, 6 nucleic acid molecules capable of expressing proteins recognized by antisera Q4-1959 were plaque purified.

Characterization of Immunogenic T. gondii proteins encoded by nucleic acid molecules selected from the T. gondii genomic expression library:

The nucleic acid molecules identified as positive for expression of immunogenic T. gondii proteins by immunoscreening with antisera Q4-1959 were screened for expression of proteins reactive with intestinal secretions from immune cats. The production of immune intestinal secretions is described in detail in Example 6, below. Prior to being used for screening, pooled intestinal secretions were preabsorbed with E. coli lysates as follows. Individual cultures of E. coli Y1090 cells and XL-1 blue cells (available from Stratagene) were grown overnight in LB Amp medium at 37° C. The cells were harvested by centrifugation, then resuspended in PBS, pH 7.4. The cell suspensions were then frozen and thawed 3 times, using a dry ice-acetone bath and a 37° C. water bath, then sonicated on ice for 10 minutes. The protein concentrations of the resulting cell lysates were adjusted to approximately 20 mg/ml, then diluted 1:10 in PBS. Fresh nitrocellulose filters (82 mm) were coated with bacterial proteins by immersing them in the diluted E. coli lysates at room temperature for 1 hour. The filters were further incubated in a solution of 4% (w/v) powdered milk in PBS, pH 7.4 for 30 minutes. The filters were then washed with PBS three times for 10 minutes each at room temperature. Pooled immune cat intestinal secretions were diluted 1:20 with 4% (w/v) powdered milk in PBS, pH 7.4. The diluted secretions mixture was incubated with the E. coli lysate-treated filters at room temperature for 1 hour, at a ratio of 20 ml per six filters. The resulting absorbed immune intestinal secretions were used without further dilution to screen nucleic acid molecules identified as positive by immunoscreening as described below. Essentially the same protocol was followed when characterizing the proteins expressed by nucleic acid molecules isolated by immunoscreening with other antisera(as described below).

Plaque pure phage identified as positive by immunoscreening were diluted in SM buffer to approximately 50 PFU/3 μl. 3 μl of each clone was dropped onto an LB/Amp agar plate which was previously overlayed with top agar containing a 1:20 dilution of a fresh culture of E. coli Y1090 at mid-log growth. The plates were then incubated at 37° C. for 5 hours. IPTG-treated nitrocellulose filters were placed on the top agar and incubated for 5 hours. The filters were marked, washed in TBS buffer, pH 8.0 at room temperature for 15 minutes and then blocked with 4% (w/v) powdered milk in TBS for 30 minutes, at room temperature. The filters were incubated with absorbed intestinal secretions at 4° C. overnight. All further manipulations were at room temperature. The filters were washed in TBS buffer for 10 minutes, 3 times. The filters were incubated for 2 hours with a 1:300 dilution of horse radish peroxidase (HRP) -conjugated goat anti-cat IgA polyclonal antibody (available from Bethyl Laboratories Inc.) in TBS buffer. The filters were washed in TBS for 10 minutes, 3 times, then incubated with 4-chloro-1-naphthol substrate. Clones were judged to be either positive or negative by the intensity of the color reaction relative to wild type phage controls. The results of this assay are summarized in Table 2. Of the six nucleic acid molecules expressing proteins recognized by antisera Q4-1959, only OC-1 expressed a protein that was positive for reactivity to immune cat intestinal secretions.

TABLE 2 Nucleic Acid Molecules Selected with Cat Sera Specific to Unsporulated Oocysts ORIGINAL DETECTION EXPRESSION pDVAC REACTIVITY SEQ ID NO DESIGNATION ICG UCG TZ BZ pTrCHIS λCRO IN VITRO IN VIVO SERUM IS 70 OC-1   + + + + − ND ND ND ND + 72 OC-2   + − 2+  + + ND ND ND ND − 74 0C-13 2+ − + + + ND + + ND − 76 0C-14  + − + + − ND ND ND ND − 78 0C-22 2+ − + 2+  + ND + + ND − 80 0C-23 2+ − 2+  + + ND ND ND ND − Table 2 Legend “SEQ ID NO” is the nucleic acid sequence designation for the nucleic acid molecule; “Original designation” is the original name for each nucleic acid molecule; “Detection” represent2s the results of RT-PCR assays to assess cDNA from infected cat gut cells (ICG), uninfected cat gut cells (UCG), tachyzoites (TZ), and bradyzoites (BZ); “Expression” refers to results of # subcloning the nucleic acid molecule into one or both of two E. coli expression plasmids, pTrCHIS and λ CRO; “pDVAC” refers to subcloning into and expression from the eukaryotic expression vector pDVACI, as tested in vitro (BHK cells) and in vivo (mice); “Reactivity”, indicates specific recognition by cat immune sera (serum) and/or cat immune intestinal secretion (IS) of the expressed product. # In all cases, (+) indicates a positive response, (−) a negative response, and (ND) indicates not done. In the column labeled “Detection”, the numbers associated with the positive responses indicate the relative signal strength for each primer assayed with each of the four cDNA samples, i.e., ICG, UCG, TZ, and BZ cDNA, and are not a comparison between primers.

Some of the nucleic acid molecules identified as positive by immunoscreening were also assessed for expression of proteins reactive with Mozart II (immune) sera. Reactivity was assessed by spotting the purified phage directly on a lawn of host E. coli and inducing the expression of protein encoded by the cloned DNA insert using IPTG-soaked filters, similar to the phage screening protocol. The filters were then probed with the Mozart II sera, in essentially the same manner as was used to select the plaque purified phage identified as positive by immunoscreening. The results of these assays are summarized in Table 2.

The Toxoplasma inserts in λ gt11, herein referred to as λ gt11:Toxoplasma nucleic acid molecules were sequenced either by direct sequencing, or by first subcloning the λ gt11:Toxoplasma nucleic acid molecules into a cloning vector, then sequencing. Direct sequencing of each insert was performed as follows: the Toxoplasma-specific insert in λ gt11 was PCR amplified under standard conditions well known in the art using a λ gt11 forward primer (5′ GGTGGCGACGACTCCTGGAG 3′) designated SEQ ID NO:365, and a λ gt11 reverse primer (5′ CCAGACCAACTGGTAATGGTAG 3′) designated SEQ ID NO:366, and the major PCR reaction product was separated from the rest of the PCR reaction products on a 1% agarose gel. The band representing the major PCR product was excised, and the gel slice was processed using the QIAquick kit (available from Qiagen Inc., Santa Clarita, Calif.) according to manufacturer's instructions in order to release the DNA. The isolated DNA fragment was sequenced under standard conditions using an ABI PRISM 377 automated DNA sequencer (available from Applied Biosystems, Foster City, Calif.). Each of the amplification primers were used separately as sequencing primers to obtain sequence from both directions.

Subcloning, then sequencing, was performed as follows: the Toxoplasma-specific insert was PCR amplified and gel purified as described above. The purified DNA was then cloned into a TA cloning vector (available from Invitrogen Corp., San Diego, Calif.) according to the manufacturer's instructions, and sequenced under standard conditions.

Sequence analysis of nucleic acid molecules selected for expression of proteins recognized by antisera Q4-1959:

The nucleic acid molecules selected for expression of proteins recognized by antisera Q4-1959 were sequenced as described above. BLASTn and BLASTp homology searches were performed on these sequences using the NCBI GenBank™ non-redundant (nr) nucleotide (n) and amino acid (p) databases, and the dbEST (est) database as described above. The results of these searches are summarized in Table 3. Nucleic acid molecule OC-1 was sequenced again and some changes found between the first and second sequence. The resequenced nucleic acid molecule is referred to herein as OC-1-a.

TABLE 3 Homologies Size # P (N) < 1e-10 TOP HITS HOMOLOGIES SEQ ID bp aa n vs nr n vs est p vs nr Score Gene Name Size Clone/Match Identities % 19 718 99 — — — 21 441 147 — — — 23 428 142 — — — 26 304 101 — — — 28 284 95 — — — 30 690 230 — — — 32 313 54 — — — 34 389 65 — — — 36 548 183 — — — 82 604 112 — 2 — 1.20E-112 AA531653 TgESTzz29d08.r1 invivo Bradyzoite cDNA 553 302-2/8-308 291-301 96 446-345/8-109 84-102 82 590-489/8-109 82-102 80 349-135/129/342 122-214 57 493-418/129-204 51-76 67 137-16/5-126 69-122 56 3.10E-33 AA520213 TgESTzz43d05.s1 TgME49 invivo Bradyzoite 574 363-127/192-428 162-237 68 500-364/340-476 117-137 85 356-220/340-476 113-137 82 601-515/383-469 77/87 88 178-106/350-422 51-73 69 241-205/456-492 26-37 70 373-349/468-492 20-25 80 84 549 — 2 — 4.30E-35 520213 TgESTzz43d05.s1 TgME49 invivo Bradyzoite 574 113-249/340-476 121-137 88 257-403/340-486 123-147 83 2-105/373-476 93-104 89 409-530/348-469 84-122 68 96-120/468-492 20/25 80 1.50E-30 AA531653 TgESTzz29d08.r1 TgME49 invivo Bradyzoite 553 23-124/8-109 87-102 85 167-268/8-109 86/102 84 311-4128-109 77-102 75 120-195/129-204 54-76 71 85 270 90 — — — 87 306 102 — — — 89 804 268 — 2 — 6.80E-150 N82167 TgESTzy44c02.r1 TgRH tachyzoite cDNA 613 247-498/2-253 245-252 97 498-557/255-336 79-82 96 575-620/334-379 44-46 95 8.00E-40 AA012353 TgESTzz17b0.r1 TgME49 tachyzoite cDNA 380 671-780/1-100 99-100 99 769-804/98-133 35-36 97 91 867 289 — 1 — 1.00E-113 N81503 TgESTzy57e07.r1 TgRH tachyzoite cDNA 343 329-541/97-309 211-213 99 3-151/161-309 147-149 98 93 1424 164 — 2 — 2.40E-142 AA531653 TgESTzz29d08.r1 TgME49 invivo bradyzoite 553 882-1086/8-212 198-205 96 1078-1262/206-390 176-185 95 452-553/8-109 93-102 91 24-125/8-109 87-102 85 1.20E-33 AA520213 TgESTzz43d.s1 TgME49 invivo bradyzoite 574 114-250/340-476 119-137 86 684-820/340-476 117-0137 85 849-1084/220-455 161-236 68 95 680 227 — 2 — 3.80E-149 AA520213 TgESTzz43d05.s1 TgME49 invivo Bradyzoite 574 3-352/127-476 343-350 98 237-493/220-476 202-257 78 1.50E-37 AA531653 TgESTzz29d08.r1 TgME49 invivo bradyzoite 553 267-501/5-239 168-235 71 411-512/8-109 86-102 84 97 296 99 — — — 99 723 53 — — — 101 270 90 — 1 — 4.50E-57 AA531653 TgESTzz29d08.r1 TgME49 invivo bradyzoite 553 3-157/236-390 149-155 96 80-187/283-390 77-108 71 63 417 139 — — — 65 416 136 — — — 67 500 — — 68 321 73 — — — 54 1233 — 1 4.50E-176 AA520348 TgESTzz69d04.r1 TgME49 invivo bradyzoites 607 2-216/147-361 162-215 75 161-407/144-390 239-247 96 408-577/390-559 156-170 91 55 411 60 — — — 57 441 118 — — — 59 491 34 — — 61 387 129 — — — 38 310 95 — — — 40 220 73 — — — 42 642 34 — 11 — 6.20E-190 AA519977 TgESTzz36d07.r1 TgME49 invivo bradyzoite 653 385-150/199-434 221-236 93 642-479/32-195 155-164 94 148-1/435-582 124-148 83 9.50E-162 AA520558 8.90E-122 AA531849 1.30E-117 AA520976 4.90E-106 AA274332 5.20E-102 W99585 8.10E-94 AA520425 8.40E-90 AA274257 1.70E-87 AA532000 5.00E-81 AA520339 2.10E-55 AA012063 44 381 27 — 9 — 4.70E-123 AA532000 TgESTzz46d07.r1 TgME49 invivo bradyzoites 577 328-3/11-336 316-326 96 5.50E-116 AA520339 1.60E-112 AA531849 1.70E-100 AA520425 3.20E-95 AA519977 1.60E-83 AA520558 6.80E-59 AA012063 4.00E-13 AA274257 7.40E-10 W99585 46 432 85 — 9 — 4.30E-124 AA520558 TgESTzz62b09.r1 TgME49 invivo bradyzoite 441 207-430/91-314 224-224 100 119-210/2-93 91-92 98 8.10E-120 AA532000 8.90E-113 AA520339 2.20E-110 AA531849 2.40E-97 AA520425 9.90E-94 AA519977 8.20E-53 AA012063 8.20E-14 AA274257 150E-10 W99585 48 282 35 — — — 50 466 71 — 9 — 1.70E-125 AA520558 TgESTzz62b09.r1 TgME49 invivo bradyzoite 441 119-418/2-316 314-315 99 1.30E-116 AA532000 7.70E-110 AA520339 4.70E-106 AA531849 2.60E-97 AA520425 2.90E-95 AA519977 1.60E-55 AA012063 6.40E-14 AA274257 1.20E-10 W99585 52 539 20 — 8 — 9.50E-130 AA532000 TgESTzz46d07.r1 TgME49 invivo bradyzoites 577 191-400/85-294 208-210 99 108-190/1-83 80-83 96 397-443/290-336 46-47 97 9.00E-124 AA531849 2.50E-109 AA520339 2.90E-98 AA520425 7.70E-86 AA519977 8.30E-83 AA520558 4.40E-55 AA012063 6.30E-11 W99585 109 699 233 — — 100 2.70E-40 P46531 Notch protein homolog Homo sapiens 2444 36-72/658-694 19-37 51 42-71/243-272 18-30 60 188-227/893-932 15-40 37 3.60E-40 A40043 1.60E-35 A36666 111 419 140 1 — 6 1.30E-28 P27951 IGA FC/beta antigen Streptococcus agalactiae 1164 22-139/827-944 40-118 33 6-128/823-945 41-123 33 3.40E-28 FCSOAG 6.20E-22 A60234 113 303 101 — — — 115 696 232 — — — 117 173 58 — — — 119 369 123 — — — 121 566 61 1 — 2.80E-13 X60241 T. gondii mitochondria-like REP2 1105 459-542/937-1020 69-84 82 1 2.90E-13 N61888 TgESTzy31c05.r1 TgRH tachyzoite 253 542-460/167-249 68-83 81 123 616 205 — — — 125 762 254 — — 2 5.30E-12 d1017785 hypothetical protein: PE . . . Synechocystis. 1749 5-96/1137-1228 32-92 34 7.10E-12 S14959 127 236 79 — — — 129 569 190 — — — 131 232 — — 132 276 92 — — — 134 309 103 — — — 136 534 178 — — — 139 327 109 — — — 141 444 148 — — — 143 928 19 — — — 70 513 171 — — 6 3.60E-15 S14959 proline-rich protein Triticum aestivum 378 10-149/192-331 46-140 32 3.60E-14 d1017785 1.40E-13 160171 4.10E-13 1372954 4.20E-11 S20500 2.90E-10 Q15428 72 528 176 — — — 74 375 125 — — — 76 543 89 — 2 — 2.00E-72 N82029 TgESTzy39d03.r1 251 525-384/56-197 139-142 97 386-331/196-251 53-56 94 542-524/38-56 18-19 94 1.40E-49 W00112 TgESTzy77b07.r1 401 542-399/136-279 142-144 98 78 573 191 — — — 80 1835 612 — — — 9 657 219 — — 8 5.40E-31 P27951 IGA FC/beta antigen Streptococcus agalactiae 1164 22-107/827-975 45-149 30 67-188/824-945 41-122 33 1.40E-30 FCSOAG 2.60E-22 A60234 4.90E-14 1620100 1.40E-12 Q01456 2.50E-10 JC4749 6.90E-10 d1014692 8.30E-10 703450 11 1029 273 1 — 5 1.70E-27 P27951 IGA FC/beta antigen Streptococcus agalactiae 1164 22-170/827-975 45-149 30 6.70E-27 FCSOAG 67-188/824-945 41-122 33 1.10E-20 A60234 7.80E-14 1620100 3.50E-12 Q01456 13 425 142 — — — 16 417 139 — — — 17 507 51 — 1 — 1.70E-51 N61591 TgESTzy18d02.r1 TgRH tachyzoite 149 331-446/4-149 144-146 98 103 503 62 — 1 — 1.70E-51 N61591 TgESTzy18d02.r1 TgRH tachyzoite 149 331-446/4-149 144-146 98 105 322 73 — — — 107 390 67 — — — 1 357 119 — — — 3 339 108 — — — 5 526 175 — 2 — 4.40E-65 W96667 TgESTzy98f02.r1 TgME49 tachyzoite 454 369-502/55-188 123-134 91 314-385/1-72 72-72 100 3.10E-43 AA037916 TgESTzy55c09.r1 TgRH tachyzoite 385 372-502/2-132 128-131 97 7 1478 381 — 5 — 4.60E-128 W96667 TgESTzy98f02.r1 TgME49 tachyzoite 454 864-1126/55-317 251-263 95 809-868/1-60 72-72 100 4.70E-119 AA037916 4.50E-43 N82635 1.20E-36 N96576 2.20E-36 N82193 Table 3 Legend Results of BLASTn and BLASTp search of the NCBI GenBank ™ non-redundant (nr) nucleotide (n) and amino acid (p) databases, and the dbEST (est) database. The algorithm used was as described in S.F. Altschul, W. Gish, W. Miller, E.W. Myers, and D.J. Lipman, J. Mol. Biol. 215, 403-10 (1990) and the NCBI. From left to right: are the sequence identification number (SEQ ID No), # the size of the nucleic acid molecule (Size) in either base pairs (bp) or amino acids (aa), the number of hits below the sum probability score of 1^(e-10) (# P(N) < 1e-10), and a section of the hits with the highest homology (HOMOLOGIES). The homologies section is sub-divided to include the sum probability (Score) of the homology, the gene accession number (Gene), # the name or identifier of the gene (Name), the size of the gene either in nucleotides, if it is a match in the BLASTn or amino acids if it is in the BLASTp (Size), the range of either nucleotides or amino acids in which a match was identified in the clone versus the match in the database (Clone/Match), the number of identities compared with the range matched (Identities), and the percentage homology of the match (%). A dash (—) indicates the search was done and there were no matches.

RT-PCR analysis of nucleic acid sequences encoding Immunogenic T. gondii proteins:

The sequence data obtained as described above were used to design unique primers specific to each nucleic acid molecule of the present invention. These primer sequences are listed in Table 4.

TABLE 4 Nucleic Acid Molecules Primer Sequences ORIGINAL BASE PAIR SEQ ID NO. DESIGNATION NAME PRIMER SEQUENCE NUMBERS 144 145 Tg-41 (5′) nTG1 CGCTTCTTGTGTCACCTG 1-18 146 Tg-41 (3′) nTG1 GCACCTTGTTCTCTCTCTTCGCC 317-295 147 Tg-45-2T (5′) nTG2 CGAGGAGACGGTGGGAGC 1-18 148 Tg-45-2T (3′) nTG2 TGCCCAAGATGCCGATCTCTG 289-269 149 Tg-50 (5′) nTG4 TCTCCCCCATCGACGAAAAC 95-114 150 Tg-50 (3′) nTG4 GCTCATTTCCTCCGCAATTTGG 456-435 151 Q2-4 (5′) nTG5 AGCTGGCAGAAATACCAAAGCTC 67-90 152 Q2-4 (3′) nTG5 TGTCGGCAATACTGGGCATG 529-510 153 Q2-9 (5′) nTG6 ACTGGAGTGGAAAGTCTGGTTTTG 37-60 154 Q2-9 (3′) nTG6 GACGCAGAGAAGAAAGAAGAGCC 415-393 155 Q2-10 (5′) nTG7 TCCAAAACTGTCTCGTCTCCCC 165-186 156 Q2-10 (3′) nTG7 TCTGGATACGCCGTTCCTTTG 305-284 157 Q2-11 (5′) nTG8 GACATCTACCTGTGAGTGAACCAGG 50-74 158 Q2-11 (3′) nTG8 GTCAAAACCTTGCCAGCATCTC 475-454 159 4499-9 (5′) nTG9 TCCGACTGAATGACTACCTCTTTC 45-28 160 4499-9 (3′) nTG9 TCCGACCAAGTCCTCAGTGAAC 537-516 161 4604-2 (5′) nTG10 TGGGCATTTCCTGGAAGAGG 36-55 162 4604-2 (3′) nTG10 GAATCCATCTCGTGCAAACGG 378-358 163 4604-3 (5′) nTG11 CAAGACACAGGGAAACGTTGG 102-122 164 4604-3 (3′) nTG11 GAAAGAATCGCACCTCCTCTCC 424-403 165 4604-5 (5′) nTG13 TTTGAGTCTAACCGCCGTATGTC 20-42 166 4604-5 (3′) nTG13 TCAGACGATTCTCCCATTGTACG 216-194 167 4604-10 (5′) nTG15 TCGACTTGGGTCCGATTGTTAG 43-64 168 4604-10 (3′) nTG15 GATCTTTTGCGTGACTTTGTCTGC 289-266 169 4604-17 (5′) nTG16 GAAGATGCTTGTCTTGTTCGGTTC 19-42 170 4604-17 (3′) nTG16 GAGGGGTTTCCTTCTTTATTGCC 178-156 171 4604-54 (5′) nTG17 TGTTGGACATCCCGAGCATC 23-42 172 4604-54 (3′) nTG17 GGTCCTTGTTTTTCAGGCGG 472-453 173 4604-62 (5′) nTG18 TCGTGCAGACAGTGAAGCAATG 35-56 174 4604-62 (3′) nTG18 TTTTGTCAGCACAGAGTGGCG 201-281 175 4604-63 (5′) nTG19 CGCAAGTGAGTTTTGGCTTTACC 15-37 176 4604-63 (3′) nTG19 CCTGGAAGAGATATGCAGACAC 389-368 177 4604-69 (5′) nTG21 TCACCGTTCGCTCTTCTTTCTC 12-33 178 4604-69 (3′) nTG21 CGACTGAAGCATGGATTGCC 367-348 179 AMX/I-5 (5′) nTG31 ACATATTCCTGAGGAGGAGTTCCC 82-105 180 AMX/I-5 (3′) nTG31 AACACACCTCCGACGACACCAC 447-426 181 AMX/I-6 (5′) nTG32 CTCGGCTTCTCCACATACAAGG 8-29 182 AMX/I-6 (3′) nTG32 GGATCTAGGCATTTGGGTTTCAC 411-389 183 AMX/I-7 (5′) nTG33 ATCGAAGAAGCTGAAGCGGAG 4-24 184 AMX/I-7 (3′) nTG33 GTGCTTGTCTCTGACGAAACCC 193-172 185 AMX/I-9 (5′) nTG34 TATCATTGTATCCCGTCGTCCC 47-68 186 AMX/I-9 (3′) nTG34 TGATGCCTGGATTTGCACAAC 363-343 187 AMX/I-10 (5′) nTG35 CGGATCGCTCTGAGTCTCTTTG 1-22 188 AMX/I-10 (3′) nTG35 ATCCTGTGTCTTCTCTTCGACCC 384-362 189 AMI-23 (5′) nTG36 GATCGCTCTGAGTCTCTTTG 88-110 190 AMI-24 (5′) nTG37 ACGTGAGGGAGAAGAAGAGAGTGC 21-44 191 AMI-24 (3′) nTG37 TTCATCGTCGCCTCTGATGTCC 347-326 192 AMI-28 (5′) nTG38 TGTAGACAGCGTTTAGGGAGTGC 21-43 193 AMI-28 (3′) nTG38 GTCCTTGGAAGTGCAGAAGCAG 440-419 194 AMI-47 (5′) nTG40 AAGCGAGGAAAAGGAGGTGTC 95-115 195 AMI-47 (3′) nTG40 CGGGAAGGTTGGTGATGTCTGTG 252-230 196 OC-1 (5′) nTG41 CCCGAAGACTTTGACCTG 34-51 197 OC-1 (3′) nTG41 AGTGGCATAGGAGGCTGG 191-174 198 OC-2 (5′) nTG42 GCACCTTCAATGCCACAGGTATC 90-112 199 OC-2 (3′) nTG42 TCGTGTGCTTCTCGCTTCTCTG 484-463 200 OC-13 (5′) nTG43 CACTGTCGATCAGAAGAAGGCTTAC 84-108 201 OC-13 (3′) nTG43 GCTCCGTGGGCACATTTTTG 367-348 202 OC-14 (5′) nTG44 CAGTTTACGAGGTACAAGGCAACAG 9-33 203 OC-14 (3′) nTG44 GATTGCGTGGGCAGTGTAGAAG 237-216 204 OC-22 (5′) nTG45 TGTTTGTTTCCCCAGTCAACGAC 89-111 205 OC-22 (3′) nTG45 CGGAAGAGGTTGTTGGACTCCTTC 570-547 206 OC-23 (5′) nTG46 CAACCGAGAGAGAAGAGAGGAACAG 62-86 207 OC-23 (3′) nTG46 TGGGGAGAACAGCAGACATCAG 602-581 208 4CQA11 (5′) nTG49 GGATGAACACTGGTGCATCATG 6-27 209 4CQA11 (3′) nTG49 CGACTTGGTCCGCTC 270-256 210 4CQA19 (5′) nTG50 CGGCGGCAACAAATGGGC 1-18 211 4CQA19 (3′) nTG50 GTCCGAGATATGAGGATGCGAC 129-108 212 4CQA21 (5′) nTG51 TCAGAGCACCATTGTTGCGAC 39-59 213 4CQA21 (3′) nTG51 TTTGACGCTCAAGTGGAGGCTG 556-535 214 4CQA22 (5′) nTG52 GCCTGCAACGCTCGATGGC 615-633 215 4CQA22 (3′) nTG52 CTTCTTGACTACCTTCACGTCTG 810-788 216 4CQA24 (5′) nTG53 AAGGACAAGCCTGGTTTG 283-300 217 4CQA24 (3′) nTG53 TTTGCCCTTCGCACAATC 1130-1113 218 4CQA25 (5′) nTG54 CCAGTTTTGCCAGAGGAAGACC 82-103 219 4CQA25 (3′) nTG54 ATCCGTCAATGCAGGTTTCATC 459-438 220 4CQA26 (5′) nTG55 AGACACCAGAGACAGCAGCAGTC 45-67 221 4CQA26 (3′) nTG55 ACTTCGCCCGACAATCGCTTTCC 266-244 222 4CQA27 (5′) nTG56 CGATCCTCCCGAGGGACC 1-18 223 4CQA27 (3′) nTG56 GCCTTTACGCATTCAAGTCGTG 174-153 224 4CQA29 (3′) nTG57 TTCAGCGGGTCTTTCCTCAC 129-110 225 R8050-2 (5′) nTG58 CAACGAGAAAGATGGAGCTTCG 34-55 226 R8050-2 (3′) nTG58 AACTTCTTGCACTTGGTCCCG 404-384 227 R8050-5 (5′) nTG60 AAGCGAGGAAAAGGAGGTGTCTC 95-118 228 R8050-5 (3′) nTG60 GGAAGGTTGGTGATGTCTGTG 250-230 229 R8050-6 (5′) nTG61 TCCCCCAGGAATTGTTGAAACAG 8-30 230 R8050-6 (3′) nTG61 ACTACCGACAACGTCTCAGTCCTTC 254-230 231 M2A1 (5′) nTG62 CGTGCGTCTGTGAGGAAAAGTG 2-23 232 M2A1 (3′) nTG62 TTGTTGCTCGTGTTGCAGGTGC 341-320 233 M2A3 (5′) nTG64 TTGTTCTCGAACCCGCAGAG 74-93 234 M2A3 (3′) nTG64 TGGCAAGAGACCGAATCGTG 235-216 235 M2A4 (5′) nTG65 AAACTTGGCAAAGGGGAACG 49-68 236 M2A4 (3′) nTG65 TGCTGTGGAGAATGATGGCTG 483-463 237 M2A5 (5′) nTG66 TTTCCGACGAAGCTGCC 25-41 238 M2A5 (3′) nTG66 GACTCCAACGAAAGCCTCG 144-126 239 M2A6 (5′) nTG67 GGAAAGGGATAAAGACGCCG 150-169 240 M2A6 (3′) nTG67 AAGCAGAGGAGAGACGAGACGAAG 337-314 241 M2A7 (5′) nTG68 CTGCACCATTTCTCACTTCTTGTG 57-80 242 M2A7 (3′) nTG68 GCAAAAGCGGACTCGATTCTATTG 192-169 243 M2A11 (5′) nTG69 TGTGGCAGAGCAAAAGGCTC 12-31 244 M2A11 (3′) nTG69 CTGTGGATGCTCCTTTGCGACT 406-385 245 M2A16 (5′) nTG70 CGAGGCACCCGAAGAATTTG 195-214 246 M2A16 (3′) nTG70 CTTCTCAGGTTCACTTCCTGCG 759-738 247 M2A18 (5′) nTG71 TCACGCAACGAACAAGTCCTC 42-62 248 M2A18 (3′) nTG71 CCCATTTTTGCTTGGCTTGC 149-130 249 M2A19 (5′) nTG72 AGCGGCAAACCAGTTCGTTG 283-302 250 M2A19 (3′) nTG72 CACCACCTTTTTCGTTGCGG 558-539 251 M2A20 (5′) nTG73 CGGCGACTCAGATGGG 1-16 252 M2A20 (3′) nTG73 GGGGCTGTGTCTTCTCTATTTCG 131-109 253 M2A21 (5′) nTG74 AAGCAAACAGGCTCGGAAGC 127-146 254 M2A21 (3′) nTG74 TCATGTTGGAGGCGTCGTTC 241-222 255 M2A22 (5′) nTG75 TGTGCAGTGGAGGACAAATGG 50-70 256 M2A22 (3′) nTG75 GAATCAGGGTGTTTTAGGGCG 284-264 257 M2A23 (5′) nTG76 ATTCTGTGCAAGCCCAGAG 305-323 258 M2A23 (3′) nTG76 CGACCAAGGGTGTTGACCAT 136-155 259 M2A24 (5′) nTG77 CTAGGCAAAGAAACACCCATGC 226-247 260 M2A24 (3′) nTG77 CGCTGGAACTCCTGACAC 327-310 261 M2A25 (5′) nTG78 ACGAAGGGAGAGATGCGTTTG 59-79 262 M2A25 (3′) nTG78 TGGCTGTTTGGGTTGTCTGG 392-373 263 M2A29 (5′) nTG79 TCACCGCAGAACTTAACCCG 62-81 264 M2A29 (3′) nTG79 CTCGCTTTTCCAGCTTGTCG 249-230 Table 4 Legend Primer Sequences to Nucleic Acid Molecules. The original name (Original Designation) and the present name (Name) for each nucleic acid molecule are listed in the second and third columns. Separate 5′ and 3′ primer sequences are listed for the nucleic acid molecules under Primer Sequence. Identification of each primer sequence as 5′ or 3′ is shown in the column labeled Original # Designation. The location of each primer sequences in its respective nucleic acid molecule is shown in the column, Base Pair Numbers. The sequence identification number for each primer is listed in the first column (Seq ID NO).

The unique primers listed in Table 4 were used in reverse transcriptase-polymerase chain reaction (RT-PCR) assays to assess the expression of the particular nucleic acid sequence in ICG, bradyzoites and tachyzoites. DNA templates were generated from total or poly A+RNA using an RT-PCT kit (available from Stratagene) according to the manufacturer's instructions. The resulting DNA templates were then amplified by standard PCR reaction. The RT-PCR reactions were performed using RNA isolated from infected cat gut (ICG), bradyzoites (BZ), tachyzoites (TZ), and the appropriate controls (e.g., uninfected cat gut (UCG) RNA). In addition to UCG controls, clone-specific primers were used in PCR reactions using DNA from the following sources: T. gondii, mouse cells, cat intestinal cells, and human cells. These results are summarized in Table 2.

Subcloning T. gondii nucleic acid molecules encoding Immunogenic T. gondii proteins into the expression vector pTrcHisB:

T. gondii nucleic acid molecules encoding immunogenic T. gondii proteins isolated as described above were subcloned into the expression vector pTrcHisB (available from Invitrogen Corp., San Diego, Calif.). The vector pTrcHisB is designed for expression of fusion proteins in E. coli and purification of proteins encoded by nucleic acid molecules of interest. Expression of fusion proteins from this vector was assessed following induction and subsequent Western blot analysis of the E. coli lysates using both a monoclonal antibody to the T7 phage amino acid tag sequence and the original sera used to select the nucleic acid molecule. The fusion proteins all contain a poly histidine amino acid sequence which was used to purify the fusion proteins using metal chelate chromatography.

Recombinant molecules containing nucleic acid sequences encoding immunogenic T. gondii proteins were produced by PCR amplifying plaque purified λ gt11:Toxoplasma nucleic acid molecules using a λ gt11 forward primer (5′ GGTGGCGACGACTCCTGGAG 3′) desginated SEQ ID NO:365, and a λ gt11 reverse primer (5′ CCAGACCAACTGGTAATGGTAG 3′), designated SEQ ID NO:366. Amplifying the Toxoplasma inserts in this way produced DNA fragments with EcoR I sites at the junctions between the Toxoplasma insert and the lambda vector. These PCR fragments were then digested with the restriction endonuclease EcoR I, gel purified and subcloned into the EcoR I-cleaved expression vector, pTrcHisB. The resultant recombinant molecules were transformed into DH5a competent cells to form recombinant cells, and assayed for the expression of an immunogenic T. gondii protein. The results of these assays are summarized in Table 2.

The recombinant cells were cultured in enriched bacterial growth medium containing 0.1 mg/ml ampicillin and 0.1% glucose at about 37° C. When the cells reached an OD₆₀₀ of about 0.4-0.5, expression of recombinant proteins was induced by the addition of 0.5 mM isopropyl-B-D-thiogalactoside (IPTG), and the cells were cultured for about 4 hours at about 37° C. Immunoblot analysis of the recombinant cell lysates using a T7 tag monoclonal antibody (available from Novagen Inc., Madison, Wis.) directed against the fusion portion of the recombinant Toxoplasma fusion protein was used to confirm the expression of the fusion proteins and to identify their size. In addition, the original selecting antisera were used to determine whether the recombinant expression molecule expressed a protein that could be recognized by the sera originally used to isolate the Toxoplasma-specific portion of the recombinant molecule. The results of these immunoblot assays are summarized in Table 2. Of the six nucleic acid molecules selected by immunoscreening with antiserum raised against oocysts (Q4-1959 serum), six were positive by this immunoblot assay.

Example 3

This Example discloses a method of isolation of T. gondii nucleic acid molecules encoding immunogenic T. gondii proteins recognized by antisera raised against the initiating stage of T. gondii gametogony: the bradyzoite. This Example further discloses recombinant nucleic acid molecules, proteins and cells of the present invention.

Antibody To Bradyzoites: Purified C strain bradyzoites (3×10⁷) from mouse brain tissue cysts were used to generate stage-specific antibody to T. gondii as follows:

T. gondii C-strain tissue cysts containing bradyzoites were passaged in mice by harvesting tissue cysts from chronically infected mice that had been infected, either intraperitoneally with tachyzoites produced in vitro, or by oral gavage with tissues cysts. Between four and eight weeks post-infection, tissue cysts were harvested and used to inoculate naive mice. Harvest was accomplished by dissecting out the brains of infected mice euthanized by inhalation of CO₂. The brains were added to a tube of 30% Dextran in HBSS (Hanks Balanced Salt Solution, available from Life Technologies Inc. (Gibco/BRL), Gaithersburg, Md.), and placed on ice until further purified. Each tube contained a maximum of 8 brains per 20 ml of 30% Dextran solution. Tissue cysts were purified by homogenizing the brains for 20-30 seconds with a Tissuemizer (available from Tekmar-Dohrmann, Cincinnati, Ohio). The homogenized brains were centrifuged for 10 minutes at 3,300 g at 4° C. The supernatant was poured off and the pellet was resuspended in 2.0 ml of HBSS. The pellets from multiple tubes were combined and the tissue cysts were counted using a hemacytometer. To produce a new lot of chronically infected mice, tissue cysts purified as described above were diluted in HBSS to a concentration of 100 tissue cysts/ml. Mice were inoculated by oral gavage with 100 μl (10 tissue cysts). After six weeks there were approximately 600 tissue cysts per mouse.

Bradyzoites were purified from tissue cysts by pepsin digestion and passage through a CF-11 cellulose column. Pepsin digestion was initiated by adding approximately 1.0 ml of pepsin digestion fluid (0.5% pepsin, 0.17 M NaCl, and 1.16 M HCl) fluid per 1.0 ml of cyst suspension. The sample was incubated for 10 min in a 37° C. waterbath with occasional swirling. After incubation, approximately 0.9 ml of 0.5% sodium carbonate per 1.0 ml of sample was added slowly and with constant gentle mixing. The solution was then centrifuged for 10 minutes at 2,000 rpm. The supernatant was removed and the pellet resuspended in 5.0 ml of Dulbecco's Modified Eagle's Medium.

1.2 g of CF-11 cellulose was added to 50.0 ml of DMEM, and then poured into a 50 ml chromatography column. The column was equilibrated by allowing most of the DMEM to wash out. The pepsin-digested bradyzoites were diluted with 45 ml of DMEM and loaded onto the column. The column was allowed to drip slowly and the flow through was collected. The column was washed with another 50 ml of DMEM and the flow through was again collected. The two 50 ml flow through aliquots were centrifuged at 2,000 rpm for 15 min. The supernatant was carefully removed and the bradyzoite pellet was resuspended in 1 ml of sterile PBS buffer. The number of bradyzoites obtained was determined by counting an aliquot using a hemacytometer.

Bradyzoites prepared as described above were lysed in a PBS, 0.001% Triton X-100 solution by freeze-thawing four times in liquid nitrogen and a 37° C. water bath. The resulting lysate was further treated by sonication for ten, 30 second bursts, while on ice. Following protein determination using a BCA Protein Kit (available from Pierce Biochemicals, Rockford, Ill.), the bradyzoite lysate was mixed with Freunds Complete and Freunds Incomplete Adjuvants for the first and subsequent (booster) injections respectively. The first injection of rabbit #2448 contained 46 mg of soluble protein, and the two following boosts contained 6 ug of soluble protein each. Injections were given subcutaneously at four week intervals, and serum, designated 2448, was collected every three weeks.

Antiserum 2448 was used to isolate nucleic acid molecules herein designated BZ1-2, BZ1-3, BZ1-6, BZ2-3, BZ2-5, BZ3-2, BZ4-3 and BZ4-6 as follows: E. coli Y1090 was infected with approximately 2×10⁵ PFU and then evenly spread on 4 LB-amp agarose culture plates. The rest of the screening procedure was as described for immunoscreening with antisera Q4-1959 (Example 2), with the following exceptions: the primary antibody was used at a 1:200 dilution, and the secondary antibody was a 1:1000 dilution of AP-conjugated goat anti-rabbit IgG. Of the 2×10⁵ plaques screened in this manner, 8 nucleic acid molecules capable of expressing proteins recognized by antisera 2448 were plaque purified.

Characterization of Immunogenic T. gondii proteins encoded by nucleic acid molecules selected from the T. gondii genomic expression library:

The nucleic acid molecules identified as positive for expression of Toxoplasma stage-specific antigenic proteins by immunoscreening with antisera 2448 were screened for expression of proteins reactive with intestinal secretions from immune cats, as described above. The results of this assay are summarized in Table 5. None of the 8 nucleic acid molecules expressing proteins recognized by antisera 2448 were positive for reactivity to immune cat intestinal secretions in this assay.

TABLE 5 Nucleic Acid Molecules Selected with Rabbit Sera Specific to Bradyzoites ORIGINAL DETECTION EXPRESSION pDVAC REACTIVITY SEQ ID NO DESIGNATION ICG UCG TZ BZ pTrCHIS λCRO IN VITRO IN VIVO SERUM IS 38 BZ1-2 ND ND ND ND ND ND ND ND ND − 40 BZ1-3 ND ND ND ND ND ND ND ND ND − 42 BZ1-6 ND ND ND ND ND ND ND ND ND − 44 BZ2-3 ND ND ND ND ND ND ND ND ND − 46 BZ2-5 ND ND ND ND ND ND ND ND ND − 48 BZ3-2 ND ND ND ND ND ND ND ND ND − 50 BZ4-3 ND ND ND ND ND ND ND ND ND − 52 BZ4-6 ND ND ND ND ND ND ND ND ND −

Sequence analysis of nucleic acid molecules selected for expression of proteins recognized by antisera 2448

The nucleic acid molecules selected for expression of proteins recognized by antisera 2448 were sequenced as described above. BLASTn and BLASTp homology searches were performed on these sequences using the NCBI GenBank™ non-redundant (nr) nucleotide (n) and amino acid (p) databases, and the dbEST (est) database as described above. The results of these searches are summarized in Table 3. Nucleic acid molecule BZ1-2 was sequenced again and some changes found between the first and second sequence. The resequenced nucleic acid molecule is referred to herein as BZ2-1-a.

Example 4

This Example discloses a method of isolation of T. gondii nucleic acid molecules encoding immunogenic T. gondii proteins recognized by rabbit antisera raised against infected cat gut. This Example further discloses recombinant nucleic acid molecules, proteins and cells of the present invention.

Production of rabbit antisera to infected cat gut: A pregnant female cat (designated Queen 2) (available from Liberty Laboratories, Liberty Corners, N.J.) was maintained in isolation and allowed to come to term. The kittens (4) were housed with the mother and nursed normally throughout the protocol. At day seven post-partum, one kitten was selected as the control and its intestine harvested as described below. The remaining kittens were infected orally with 5000 mouse brain-derived tissue cysts of the T. gondii strain C, by dripping a solution of the tissue cysts in 1 ml of PBS down the back of their throats. The infected kitten intestines were obtained and processed on day 7 post-infection. The Queen 2 was also infected orally at the same time and in a similar fashion using 100 tissue cysts of T. gondii C strain.

In order to obtain fresh intestine, the following procedure was used for both the control and infected animals. A kitten was first anesthetized by placing it in an inhalation chamber which was flooded with both isoflurane and oxygen until the animal was anesthetized. The kitten was then euthanized with an intravenous injection of commercial pentobarbital euthanasia solution at the recommended dose (88 mg/kg). The animal was immediately dissected to expose the small intestine. This was removed by excisions at the anterior junction with the stomach and the posterior junction with the large intestine. The intestine was opened by a single cut from the anterior to the posterior end, exposing the mucosal surface. The gut was then dipped sequentially into three separate washing baths containing cold HBSS (Hanks buffered saline solution) (available from Life Technologies Inc. (Gibco/BRL), Gaithersburg, Md.). The intestine was then placed flat on a chilled laminated sterile surface with the mucosal layer up. A single piece of dry nitrocellulose (BA85, available from Schleicher and Schuell Inc., Keene, N.H.) the length of the intestine, ranging in size from 40 to 70 cm long (this varied with the animal) and 5 mm wide, was carefully placed lengthwise on the mucosal surface of the intestine to obtain an impression smear of the villus epithelial cells. After the nitrocellulose strip became wet (approximately 30 seconds after application), the strip was carefully lifted off and allowed to air dry. The orientation of the anterior and posterior ends of the intestine and strip were noted. Forty biopsy samples, approximately 4 mm by 4 mm sections, were then taken from random positions throughout the length of the intestine, and immediately fixed in either methanol or gluteraldehyde, and maintained for further histological analysis. The intestine was then cut into ten equal sections, and each section placed in a separate bag, labeled and quick frozen in a dry ice and acetone bath. The intestinal sections were maintained at −70° until further processing.

Sections of the cat gut which contained T. gondii were identified using PCR analysis of the DNA captured by the nitrocellulose lift with primers specific to the T. gondii α-tubulin gene. The presence of T. gondii parasite infection was confirmed by histological analysis of the biopsy sections. Portions of T. gondii-positive cat gut sections were then prepared as follows for subsequent injections into rabbits to produce antibody directed toward major epitopes from T. gondii gametogenic stages. The same methods were also used to produce antibody in cats to infected cat gut preparations, as herein described (in Example 5). A piece of intestine approximately 2 mm by 20 mm was cut from five frozen sections of infected cat gut material. The pieces were maintained at 4° C., laid flat and the mucosal layer carefully scraped from the intestine wall and muscle layers using a razor blade. This material was then minced and placed in 5 ml of sterile PBS containing 1% nystatin, 10 μg/ml gentamicin, and 1% penicillin/streptomycin in a conical centrifuge tube. The mixture was brought through 4 cycles of a freeze-thaw treatment using liquid nitrogen and a 37° C. waterbath. The sample was vortexed between each cycle. The sample was placed on ice and then sonicated using a microtip for 20 seconds followed by 20 seconds on ice. This was repeated four times. The suspension was divided among four Eppendorf tubes and centrifuged (Eppendorf 5415 C centrifuge, available from Brinkmann Instruments Inc., Westbury, N.Y.) at maximum speed for 30 minutes at 4° C. The supernatant was then put through a 0.22 micron filter and a protein determination performed using the BCA Protein Determination Kit (available from Pierce Chemical Co., Rockford, Ill.) according to the manufacturer's protocol. The sample was stored as small aliquots at −70° C. until used.

Polyclonal antisera against infected cat gut (ICG) antigens (also herein referred to as anti-ICG antiserum, or anti-ICG antibody) were prepared by immunization of New Zealand White rabbits with infected cat gut tissue protein as follows. Six rabbits were injected with the solubilized cat gut material; two rabbits (designated #4603 and #8049) were injected with solubilized material from uninfected cat gut, and 4 rabbits (designated #4604, #4499, #8050, and #8051) were injected with solubilized material from infected cat gut material. For the first injection, 0.5 mg of soluble protein, prepared as described above, was brought to 0.5 ml and mixed with an equal volume of Freunds Complete Adjuvant. This solution was delivered sub-cutaneously (SQ). The second injection, two weeks later, was identical to the first, except Freunds Incomplete Adjuvant was used. A third injection, twelve weeks after the first injection, was similar to prior injections except that the total amount of protein injected was 1.5 mg. The animals were pre-bled prior to the first immunization and were bled at approximately monthly intervals to monitor antibody responses. The blood was allowed to clot at room temperature and serum obtained by centrifugation. The sera were evaluated for the presence of antibody specific to T. gondii by both Western blot analysis using tachyzoite lysates and by indirect immunofluorescent antibody assay (section IFA) using histological sections obtained from infected cat intestine.

The rabbit antisera were preabsorbed to uninfected cat gut material prior to use in immunoscreening, either by absorbing the antisera to Sepharose beads to which solubilized uninfected cat gut material had been covalently linked, or by absorbing the antisera to nitrocellulose sheets to which uninfected cat gut protein was bound. Western analysis demonstrated that greater than 98% of the serum reactivity to uninfected cat gut was removed by preabsorption to the column. The remaining (unabsorbed) sera showed reactivity towards T. gondii tachyzoite lysates. The unabsorbed sera were used to screen the Toxoplasma genomic library.

Antisera 4604 was used to isolate nucleic acid molecules herein designated 4604-2, 4604-3, 4604-5, 4604-10, 4604-17, 4604-54, 4604-62, 4604-63 and 4604-69 as follows: Two separate immunoscreens were performed with this antisera, and Toxoplasma-specific nucleic acid molecules were isolated form each screen. In the first screen, E. coli Y1090 was infected with approximately 5×10⁴ PFU and then evenly spread on 10 LB-amp agarose culture plates. In the second screen, E. coli Y1090 was infected with approximately 1.5×10⁶ PFU and then evenly spread on 12 LB-amp agarose culture plates. The rest of the screening procedure was as described for immunoscreening with antisera Q4-1959 (Example 2), with the following exceptions: the primary antibody was used at a 1:500 dilution, and the secondary antibody was a 1:500 dilution of AP-conjugated goat anti-rabbit IgG. Of the approximately 1.5×10⁶ plaques screened in this manner, 15 nucleic acid molecules capable of expressing proteins recognized by antisera 4604 were plaque purified.

Antisera 4499 was used to isolate nucleic acid molecule 4499-9 as follows: E. coli Y1090 was infected with approximately 5×10⁴ PFU and then evenly spread on 10 LB-amp agarose culture plates. The rest of the screening procedure was as described for immunoscreening with antisera Q4-1959 (Example 2), with the following exceptions: the primary antibody was used at a 1:200 dilution, and the secondary antibody was a 1:500 dilution of AP-conjugated goat anti-rabbit IgG. Of the 5×10⁴ plaques screened in this manner, 2 nucleic acid molecules capable of expressing proteins recognized by antisera 4499 were plaque purified.

Antisera R8050 (rabbit antisera raised against infected cat gut) was used to isolate nucleic acid molecules herein designated R8050-2, R8050-5, and R8050-6 as follows: E. coli Y1090 was infected with approximately 5×10⁶ PFU and then evenly spread on 10 LB-amp agarose culture plates. The rest of the screening procedure was as described for immunoscreening with antisera Q4-1959 (Example 2), with the following exceptions: the primary antibody was used at a 1:200 dilution, and the secondary antibody was a 1:1000 dilution of AP-conjugated goat anti-rabbit IgG (available from Kirkegaard Perry Laboratories). Of the 5×10⁶ plaques screened in this manner, 4 nucleic acid molecules capable of expressing proteins recognized by antisera R8050 were plaque purified.

Selected nucleic acid molecules identified by screening for the expression of proteins recognized by rabbit anti-ICG antisera were subcloned and sequenced as described in Example 2. The results of assays to characterize the isolated nucleic acid molecules are summarized in Table 6.

TABLE 6 Nucleic Acid Molecules Selected with Rabbit Sera Specific to Infected Cat Gut ORIGINAL DETECTION EXPRESSION pDVAC REACTIVITY SEQ ID NO DESIGNATION ICG UCG TZ BZ pTrCHIS λCRO IN VITRO IN VIVO SERUM IS 19 BZ1-2 + − + + ND + ND ND + + 21 46O4-2 + − + + ND + ND ND ND − 23 46O4-3 + − + − ND + ND ND ND − 25 46O4-5 − − + + ND − ND ND ND − 26 46O4-10 − − + + ND − ND ND ND − 28 46O4-17 + − + + ND − ND ND ND − 30 46O4-54 + − − 2+  ND + ND ND ND − 32 46O4-62 + − + + + ND ND ND ND − 34 46O4-63 + − + + − ND ND ND ND − 36 4604-69 + − 2+  + ND + ND ND ND − 103 R8050-2 + − 2+  + + ND ND ND ND − 105 R8050-5 − − + − + ND ND ND ND − 107 R8050-6 + − 2+  − − ND ND ND ND − Table 6 Legend: See Legend for Table 2.

Sequence analysis of nucleic acid molecules selected for expression of proteins recognized by rabbit anti-ICG antisera 4604, 4499 and R8050:

Nucleic acid molecules 4604-2, 4604-3, 4604-5, 4604-10, 4604-17, 4604-54, 4604-62, 4604-6, 4604-69, R8050-2, R8050-5, and R8050-6 were sequenced as described above. These nucleic acid molecules were sequenced as described above. BLASTn and BLASTp homology searches were performed on these sequences using the NCBI GenBank™ non-redundant (nr) nucleotide (n) and amino acid (p) databases, and the dbEST (est) database as described above. The results of these searches are summarized in Table 3., as described above. The results of these searches are summarized in Table 3.

The sequence data described above were used to design unique primers specific to each nucleic acid molecule of the present invention. These primer sequences are listed in Table 4. The unique primers listed in Table 4 were used in reverse transcriptase-polymerase chain reaction (RT-PCR) assays to assess the expression of the particular nucleic acid sequence in ICG, bradyzoites and tachyzoites. The results of these assays are summarized in Table 6.

T. gondii nucleic acid molecules encoding immunogenic T. gondii proteins isolated by immunoscreening with rabbit anti-ICG antiserum were subcloned into either or both of two expression vectors: pTrcHisB (as described above) or Prcro/T2ori/RSET-B (described below). Expression of the fusion proteins from these vectors, and purification of their expressed fusion proteins, were as described above. The results of assays for the expression of recombinant immunogenic T. gondii proteins from these expression vectors is summarized in Table 6.

Recombinant nucleic acid molecules and protein molecules including sequences encoding T. gondii antigenic proteins and sequences from the vector Prcro/T2ori/RSET-B: Recombinant molecules containing T. gondii nucleic acid molecules operatively linked to lambda phage transcriptional control sequences and to a fusion sequence encoding a poly-histidine segment, were produced in the following manner. T. gondii DNA fragments in λ gt11 were PCR amplified from nucleic acid molecules herein designated 4499-9, 4604-2, 4604-3, 4604-5, 4604-10, 4604-17, 4604-54, and 4604-69, using the λgt11 forward and reverse primers herein described. Recombinant molecules were produced by digesting the PCR product with EcoR I, gel purifying the resulting fragment, and subcloning into expression vector PRcro/T2ori/RSET-B (also referred to herein as λ CRO) that had been cleaved with EcoR I and gel purified. Expression vector PRcro/T2ori/RSET-B contains the following nucleotide segments: An about 1990-bp Pvu II to Aat II fragment from pUC19 containing the ampicillin resistance gene and E. coli of replication; an about 1000-bp Pvu II to Bgl II fragment from pRK248cIts (available from American Type Culture Collection, Rockville, Md.) containing lambda transcriptional regulatory regions (including the gene encoding cI^(ts), the promoter P_(R), and a sequence encoding 22 amino acids of the cro protein); an about 60-bp BgI II to Xha I fragment from pGEMEX-1 (available from Promega Corp.) which contains the T7 promoter; an about 166-bp Xba I to EcoR I fragment from pRSET-B (available from Invitrogen, San Diego Calif.) which contains sequences encoding the T7-S10 translational enhancer, the His₆ fusion, the 14-amino acid S10 leader fusion, and an enterokinase cleavage site as well as the multiple cloning site; and an about 210-bp EcoR I to Aat II fragment containing synthetic translational and transcription termination signals including the T₁ , translation terminators in all three reading frames, an RNA stabilization sequence from Bacillus thurengiensis crystal protein and the T₂ rho-independent transcription terminator from the trpA operon. Expression vector PRcro/T2ori/RSET-B contains the following nucleotide segments. An about 1990-bp PvuII to AatII fragment from pUC19 containing the ampicillin resistance gene and E. coli of replication; an about 1000-bp PvuII to Bg/II fragment from pRK248cIts (available from American Type Culture Collection, Rockville, Md.) containing lambda transcriptional regulatory regions (including the gene encoding cI^(ts), the promoter p_(R), and a sequence encoding 22 amino acids of the cro protein); an about 60-bp Bg/II to XbaI fragment from pGEMEX-1 (available from Promega Corp., Madison Wis.) which contains the T7 promoter; an about 166-bp XbaI to EcoRI fragment from pRSET-B (available from Invitrogen Corp., San Diego Calif.) which contains sequences encoding the T7-S10 translational enhancer, the His₆ fusion, the 14-amino acid S10 leader fusion, and an enterokinase cleavage site as well as the multiple cloning site; and an about 210-bp EcoRI to AatII fragment containing synthetic translational and transcription termination signals including the T₁ translation terminators in all three reading frames, an RNA stabilization sequence from Bacillus thurengiensis crystal protein and the T₂rho-independent transcription terminator from the trpA operon.

The resulting recombinant molecules were transformed into E. coli to form recombinant cells, using standard techniques as disclosed in Sambrook et al., ibid.

The recombiant cells were cultured in shake flasks containing an enriched bacterial growth medium containing 0.1 mg/ml ampicillin and 1% glucose at about 32° C. When the cells reached an OD₆₀₀ of about 0.6, expression of the Toxoplasma antigen was induced by quickly adjusting the temperature to 42° C. and continuing cultivation of the cells for about 2 hours. Protein production was monitored by SDS PAGE of recombinant cell lysates, followed by immunoblot analysis using standard techniques as described herein and as known in the art. The results of these assays are summarized in Table 6.

The antisera used to originally isolate each Toxoplasma-specific nucleic acid molecule (i.e., either antiserum 4604, or antiserum 4499) was used to identify recombinant proteins in E. coli extracts as follows. The material in crude extracts from E. coli were separated by running 5 μg protein per lane on a 12-well 10% Tris-glycine SDS-PAGE gel at 200 volts for 1 hour, and then transferred to nitrocellulose membranes by standard methods. After transfer, the membranes were blocked in 5% (w/v) dry milk for 1 hr at 37° C. The membranes were then incubated with a 1:200 dilution in Tris buffered saline of the sera originally used to select the nucleic acid molecule encoding Toxoplasma-specific portion of the fusion protein. After 1 hr incubation at room temperature, the blots were washed, and antibody binding resolved using a secondary antibody bound to a substrate for a color indicator. Using the original selecting antibody, immunoblot analysis of E. coli lysates identified fusions proteins at or near the predicted molecular weight of the recombinant fusion protein. The results of these assays are summarized in Table 6.

Histidine tagged fusion proteins were purified from cell lysates as follows. Cell cultures containing nucleic acid molecules of the present invention inserted into either pTrcHisB or λ CRO were grown to an OD₆₀₀ of approximately 0.4 to 0.5. The cultures were induced with IPTG, and the cells harvested 4 hours later. Ten ml of cell culture was centrifuged at 3000 rpm on a table top centrifuge and the protein isolated according to the manufacturer's instructions using a Ni-NTA Spin Kit (available from Qiagen Inc.). Protein purification was monitored by SDS PAGE followed by Coomassie Blue staining of the column eluate fractions. Recombinant cells including recombinant molecules 4499-9, 4604-2, 4604-3, 4604-54, and 4604-69 produced proteins that were able to bind to a T7 tag monoclonal antibody (available from Novagen Inc., Madison, Wis.) directed against the fusion portion of the recombinant fusion protein.

Recombinant nucleic acid molecules and protein molecules including sequences encoding T. gondii antigenic proteins and sequences from the vector pTrcHisB:

Recombinant nucleic acid molecules including sequences encoding T. gondii antigenic proteins and sequences from the vector pTrcHisB were produced as described in Example 2. In brief, T. gondii DNA fragments in λ gt11 were PCR amplified from nucleic acid molecules herein designated 4604-62, 4604-63, R8050-2, R8050-5, and R8050-6, using the λ gt11 forward and reverse primers herein described. The resulting recombinant molecules were transformed into E. coli to form recombinant cells 4604-62, 4604-63, R8050-2, R8050-5, and R8050-6. Immunoblot analysis of the recombinant cell lysates using a T7 tag monoclonal antibody (available from Novagen Inc., Madison, Wis.) directed against the fusion portion of the recombinant Toxoplasma fusion protein was used to confirm the expression of the fusion proteins and to identify their size. Of the six nucleic acid molecules selected by immunoscreening with rabbit anti-ICG antiserum that were subcloned into the expression vector pTrcHisB, 15(4604-62, R8050-2, and R8050-5) were positive by this immunoblot assay. The results of these assays are summarized in Table 6.

Example 5

This Example discloses a method of isolation of T. gondii nucleic acid molecules encoding immunogenic T. gondii proteins recognized by cat antisera raised against infected cat gut. This Example further discloses recombinant nucleic acid molecules, proteins and cells of the present invention.

Preparation of cat antibody against infected cat gut: Preparation of infected cat gut material and production of anti-ICG antisera in cats was performed essentially as herein described for production of rabbit anti-ICG antiserum. Polyclonal cat antisera against infected cat gut (ICG) antigens (also herein referred to as anti-ICG antiserum or antisera, or anti-ICG antibody) were prepared by immunization of cats as follows. Three cats were injected with cat gut material. One cat (#AME5) was injected with material from uninfected cat gut material and two cats (#AMI4, #AMX1) were injected with material from infected cat gut preparations. The same injection, boost and bleed regimen and antigen preparation were used for cats as was used for rabbits, described above. Like the rabbit antisera, the cat antisera were preabsorbed to uninfected cat gut material prior to use in immunoscreening.

Anti-sera AMI was used to isolate nucleic acid molecules herein designated AMI-23, AMI-24, AMI-28, and AMI-47 as follows: E. coli Y1090 was infected with approximately 5×10⁶ PFU and then evenly spread on 10 LB-amp agarose culture plates. The rest of the screening procedure was as described for immunoscreening with antisera Q4-1959 (Example 2), with the following exceptions: the primary antibody was used at a 1:200 dilution, and the secondary antibody was a 1:1000 dilution of AP-conjugated goat anti-cat IgG. Of the 5×10⁶ plaques screened in this manner, 6 nucleic acid molecules capable of expressing proteins recognized by antisera AMI were plaque purified.

Anti-sera AMX/I was used to isolate nucleic acid molecules herein designated AMX/I-5, AMX/I-6, AMX/I-7, AMX/I-9, and AMX/I-10 as follows: E. coli Y1090 was infected with approximately 5×10⁶ PFU and then evenly spread on 12 LB-amp agarose culture plates. The rest of the screening procedure was as described for immunoscreening with antisera Q4-1959 (Example 2), with the following exceptions: the primary antibody was used at a 1:200 dilution, and the secondary antibody was a 1:1000 dilution of AP-conjugated goat anti-cat IgG. Of the 5×10⁶ plaques screened in this manner, 6 nucleic acid molecules capable of expressing proteins recognized by antisera AMX/I were plaque purified. The results of this immunoscreen are summarized in Table 7.

TABLE 7 Nucleic Acid Molecules Selected by Cat Serum Specific to Infected Cat Gut ORIGINAL DETECTION EXPRESSION pDVAC REACTIVITY SEQ ID NO DESIGNATION ICG UCG TZ BZ pTrCHIS λCRO IN VITRO IN VIVO SERUM IS 54 AMX/I-5 + − + + + + ND ND ND + 55 AMX/I-6 2+  − 2+  + ND + ND ND ND − 57 AMX/I-7 2+  − − + ND + ND ND ND − 59 AMX/I-9 2+  − + + + ND ND ND ND − 61 AMX/I-10 + + − − + ND ND ND − 63 AMI-23 + + − − ND ND ND ND ND − 65 AMI-24 + − + 2+  + ND ND ND ND − 67 AMI-28 + − + 2+  ND ND ND ND ND − 68 AMI-47 − − + − + ND ND ND ND − Table 7 Legend: See Legend for Table 2.

Selected nucleic acid molecules identified by screening for the expression of proteins recognized by cat anti-ICG antisera were subcloned and sequenced as described in Example 2.

Sequence analysis of nucleic acid molecules selected for expression of proteins recognized by cat anti-ICG antisera AMI and AMX/I:

The nucleic acid molecules isolated using antisera AMI or AMX/I were sequenced as described above. BLASTn and BLASTp homology searches were performed on these sequences using the NCBI GenBank™ non-redundant (nr) nucleotide (n) and amino acid (p) databases, and the dbEST (est) database as described above. The results of these searches are summarized in Table 3.

The sequence data described above were used to design unique primers specific to each nucleic acid molecule of the present invention. These primer sequences are listed in Table 4. The unique primers listed in Table 4 were used in reverse transcriptase-polymerase chain reaction (RT-PCR) assays to assess the expression of the particular nucleic acid sequence in ICG, bradyzoites and tachyzoites. The results of these assays are summarized in Table 7.

T. gondii nucleic acid molecules encoding immunogenic T. gondii proteins isolated by immunoscreening with cat anti-ICG antiserum (antiserum AMI or AMX/I) were subcloned into either or both of two expression vectors: pTrcHisB or Prcro/T2ori/RSET-B (as described above). Expression of the fusion proteins from these vectors, and purification of their expressed fusion proteins, were as described above.

Recombinant nucleic acid molecules, protein molecules and cells including sequences encoding T. gondii antigenic proteins and sequences from the vector Prcro/T2ori/RSET-B:

Recombinant molecules containing T. gondii nucleic acid molecules operatively linked to lambda phage transcriptional control sequences and to a fusion sequence encoding a poly-histidine segment in the vector Prcro/T2ori/RSET-B, were produced essentially as described above, resulting in the production of recombinant molecules. The resulting recombinant molecules were transformed into E. coli to form recombinant cells using standard techniques as disclosed in Sambrook et al., ibid. Assays for the expression of an immunogenic T. gondii fusion protein by these cells were performed as described above, and the results are summarized in Table 7.

Recombinant nucleic acid molecules, protein molecules and cells including sequences encoding T. gondii antigenic proteins and sequences from the vector pTrcHisB:

Recombinant nucleic acid molecules including sequences encoding T. gondii antigenic proteins and sequences from the vector pTrcHisB were produced as described in Example 2. In brief, T. gondii DNA fragments in λ gt11 were PCR amplified from nucleic acid molecules herein designated AMX/I-5, AMX/I-9, AMI-24 and AMI-47 using the λ gt11 forward and reverse primers herein described. The resulting recombinant molecules were transformed into E. coli to form recombinant cells AMX/I-5, AMX/I-9, AMI-24 and AMI-47. Immunoblot analysis of the recombinant cell lysates using a T7 tag monoclonal antibody (available from Novagen Inc., Madison, Wis.) directed against the fusion portion of the recombinant Toxoplasma fusion protein was used to confirm the expression of the fusion proteins and to identify their size. The results of this immunoblot analysis are summarized in Table 7.

Example 6

This Example discloses a method of isolation of T. gondii nucleic acid molecules encoding immunogenic T gondii proteins recognized by cat immune sera. This Example further discloses recombinant nucleic acid molecules, proteins and cells of the present invention.

Production of cat immune sera:

Eight specific-pathogen free (SPF) cats (available from Liberty Laboratories, Liberty Corners, N.J.), ages 8-10 months, were randomly assigned to two groups; Group 1, n=5 and Group 2, n=3 (the uninfected control group). Before the initiation of any studies with these animals, serum samples were taken from each and tested for reactivity to solubilized tachyzoites. Each animal was seronegative for T. gondii by standard Western and ELISA analysis using solubilized tachyzoites as the antigen. This serum also served as the pre-bleed in subsequent studies. Feces from each animal were analyzed for the presence of shed T. gondii oocysts using flotation by sugar solution centrifugation followed by microscopic examination. Food was removed from both groups fourteen hours prior to Day 0, and on the day prior to all sample collections. On Day 0 the cats in Group 1 were orally inoculated by syringe at the back of the throat with 1000 mouse brain derived T. gondii tissue cysts of the Mozart strain. This strain represents an isolate from a cat which presented with Toxoplasmosis at the Veterinary Teaching Hospital, Colorado State University, in 1992. The Group 2 cats were not infected.

The Group 1 cats were housed in individual stainless steel cages in an infectious disease isolation unit. The feces from each animal were collected every day for the first fourteen days post infection (PI) and weekly thereafter until parasite challenge. The feces were analyzed for the presence of shed T. gondii oocysts. Five milliliters of whole blood was collected from each animal by jugular venipuncture on the following days post primary infection: 3, 7, 10, 14, 21, 28, 42, 56, 70, 84, 112, 140, 143, 147, 154, 161, 168, and 182.

On day 140 post primary infection, all Group 1 cats were orally challenged with 1000 mouse brain-derived tissue cysts of the Mozart strain. Fecal samples were collected and monitored for the excretion of oocysts for thirty days post challenge (PC). The cats were then bled as before on days: 3, 7, 14, 21, 28, and 42 post challenge.

In addition to the serum samples collected on the bleed dates, both salivary secretions and intestinal secretions were obtained at weeks 0, 1, 2, 4, 8, 10, 16, 20, 21, 22, 23, 24, and 26. These samples were obtained by first anesthetizing each animal with an injection of thiobarbiturate, then intubating the animals and maintaining them with halothane and oxygen. Approximately 0.1 ml of saliva was collected into an equal volume of 0.1 M EDTA. The intestinal secretions were obtained from the upper portion of the small intestine using an endoscope fitted with medical tubing which allowed suction of intestinal fluid. Intestinal secretions were diluted 1:1 with sterile 0.9% NaCl and centrifuged at 10,000×g for 5 minutes in an Eppendorf centrifuge. The secretions were stored at −70° C. until use. Pooled secretions included equal aliquots from all five immune animals from week 20 through 26 post infection. These pooled secretions were used to test the reactivity of intestinal secretions from immune cats to proteins expressed by nucleic acid molecules of the present invention.

All Group 1 animals shed oocysts in their feces during the primary infection and all seroconverted as assessed by Western blot analysis using tachyzoite lysates as the antigen. None of these animals shed oocysts when challenged, and were therefore considered immune. The sera from the immune animals was pooled, and is referred to herein as Mozart II antiserum or antisera, or as immune antiserum or antisera.

Mozart II antisera was used to isolate nucleic acid molecules herein designated 4CQA-7, 4CQA-11, 4CQA-19, 4CQA-21, 4CQA-22, 4CQA-24, 4CQA-25, 4CQA-26, 4CQA-27, and 4CQA29 as follows: E. coli Y1090 was infected with approximately 8.3×10⁵ PFU and then evenly spread on 13 LB-amp agarose culture plates. The rest of the screening procedure was as described for immunoscreening with antisera Q4-1959 (Example 2), with the following exceptions: the primary antibody was used at a 1:80 dilution, and the secondary antibody was a 1:50 dilution of monoclonal mouse anti-cat α chain (available from Serotec, Oxford, England) and the tertiary antibody was a 1:1000 dilution of AP-conjugated goat anti-mouse IgG (Kirkegaard Perry Laboratories). Of the 8.3×10⁵ plaques screened in this manner, 13 nucleic acid molecules capable of expressing proteins recognized by Mozart II antisera were plaque purified. The results of assays to characterize these nucleic acid molecules are summarized in Table 8.

TABLE 8 Nucleic Acid Molecules Selected with Immune Cat Sera in Screens II and III ORIGINAL DETECTION EXPRESSION pDVAC REACTIVITY SEQ ID NO DESIGNATION ICG UCG TZ BZ pTrCHIS ICRO IN VITRO IN VIVO SERUM IS 1 Tg-41 2+  − + 3+  + ND + + + − 3 Tg-45 + − 2+  + + ND + + + + 5 Tg-50 + − + + + ND ND ND + + 82 4CQA-7 ND ND ND ND ND ND ND ND + − 85 4CQA-11 2+  − + 2+  − ND + ND + + 87 4CQA-19 + − + + − ND ND ND + − 89 4CQA-21 3+  − 3+  + + ND ND ND + − 91 4CQA-22 + − 3+  2+  − ND ND ND + − 93 4CQA-24 + − 2+  3+  − ND ND ND + − 95 4CQA-25 + − 2+  3+  − ND ND ND + − 97 4CQA-26 + + + + − ND ND ND + − 99 4CQA-27 + − + + + ND ND ND + − 101 4CQA-29 + − + 2+  − ND ND ND + − 109 M2A-1 + − + + ND ND ND ND + + 111 M2A-2 ND ND ND ND ND ND ND ND + − 113 M2A-3 − − − − ND ND ND ND + − 115 M2A-4 + − + + ND ND ND ND + − 117 M2A-5 + − ND ND ND ND ND ND + − 119 M2A-6 − − − − ND ND ND ND + − 121 M2A-7 + − + + ND ND ND ND + − 123 M2A-11 + − + + ND ND ND ND + − 125 M2A-16 + − ND ND ND ND ND ND + − 127 M2A-18 + − + + ND ND ND ND + − 129 M2A-19 + + − + ND ND ND ND + − 131 M2A-20 + − + + ND ND ND ND + − 132 M2A-21 − − − − ND ND ND ND + − 134 M2A-22 + − + + ND ND ND ND + − 136 M2A-23 − − − − ND ND ND ND + − 139 M2A-24 − − − − ND ND ND ND + − 141 M2A-25 + − + + ND ND ND ND + − 143 M2A-29 + − + + ND ND ND ND + − Table 8 Legend: See Legend for Table 2.

In addition to the immunoscreen described above, Mozart II antisera was used in another immunoscreen to isolate nucleic acid molecules herein designated M2A1, M2A2, M2A3, M2A4, M2A5, M2A6, M2A7, M2A11, M2A16, M2A18, M2A19, M2A20, M2A21, M2A22, M2A23, M2A24, M2A25, and M2A29 as follows: E. coli Y1090 was infected with approximately 1×10⁶ PFU and then evenly spread on 10 LB-amp agarose culture plates. The rest of the screening procedure was as described for immunoscreening with antisera Q4-1959 (Example 2), with the following exceptions: the primary antibody was used at a 1:50 dilution, and the secondary antibody was a 1:200 dilution of AP-conjugated goat anti-cat IgA (available from Bethyl Laboratories Inc., Montgomery, Tex.). Of the 1×10⁶ plaques screened in this manner, 18 nucleic acid molecules capable of expressing proteins recognized by Mozart II antisera were plaque purified. The results of assays to characterize these nucleic acid molecules are summarized in Table 8.

Mozart II antisera was also used in yet another immunoscreen to isolate nucleic acid molecules herein designated Tg-41, Tg-45, and Tg-50 as follows: E. coli Y1090 was infected with approximately 1×10⁶ PFU and then evenly spread on 12 LB-amp agarose culture plates. The rest of the screening procedure was as described for immunoscreening with antisera Q4-1959 (Example 2), with the following exceptions: the primary antibody was used at a 1:50 dilution, and the secondary antibody was a 1:200 dilution of AP-conjugated goat anti-cat IgA Fc. Of the 1×10⁶ plaques screened in this manner, 4 nucleic acid molecules capable of expressing proteins recognized by Mozart II antisera were plaque purified. The results of assays to characterize these nucleic acid molecules are summarized in Table 8.

Selected nucleic acid molecules identified by screening for the expression of proteins recognized by Mozart II (immune) antiserum were subcloned and sequenced as described in Example 2.

Sequence analysis of nucleic acid molecules selected for expression of proteins recognized by Mozart II (immune) antiserum:

The nucleic acid molecules isolated using Mozart II (immune) serum were sequenced as described above. BLASTn and BLASTp homology searches were performed on these sequences using the NCBI GenBank™ non-redundant (nr) nucleotide (n) and amino acid (p) databases, and the dbEST (est) database as described above. The results of these searches are summarized in Table 3. Nucleic acid molecule M2A3 was sequenced again and some changes found between the first and second sequence. The resequenced nucleic acid molecule is referred to herein as M2A3-a. In addition, nucleic acid molecule M2A18 was sequenced again and some changes found between the first and second sequence. The resequenced nucleic acid molecule is referred to herein as M2A18-a.

The sequence data described above were used to design unique primers specific to each nucleic acid molecule of the present invention. These primer sequences are listed in Table 4. The unique primers listed in Table 4 were used in reverse transcriptase-polymerase chain reaction (RT-PCR) assays to assess the expression of the particular nucleic acid sequence in ICG, bradyzoites and tachyzoites. The results of these assays are summarized in Table 8.

Recombinant nucleic acid molecules, protein molecules and cells including sequences encoding T. gondii antigenic proteins and sequences from the vector pTrcHisB:

Recombinant nucleic acid molecules including sequences encoding T. gondii antigenic proteins and sequences from the vector pTrcHisB were produced as described in Example 2. In brief, T. gondii DNA fragments in λ gt11 were PCR amplified from nucleic acid molecules herein designated 4CQA-11, 4CQA-19, 4CQA-21, 4CQA-22, 4CQA-24, 4CQA-25, 4CQA-26, 4CQA-27, 4CQA-29, Tg-41, Tg-45, and Tg-50 using the λ gt11 forward and reverse primers herein described. The resulting recombinant molecules were transformed into E. coli to form recombinant cells. Immunoblot analysis of the recombinant cell lysates using a T7 tag monoclonal antibody (available from Novagen Inc., Madison, Wis.) directed against the fusion portion of the recombinant Toxoplasma fusion protein was used to confirm the expression of the fusion proteins and to identify their size. The results of this immunoblot analysis are summarized in Table 8.

Example 7

This Example discloses a method of isolation of T. gondii nucleic acid molecules encoding immunogenic T. gondii proteins recognized by cat immune sera enriched for antibodies to gametogenic stages (herein referred to as absorbed immune sera or serum). This Example further discloses recombinant nucleic acid molecules, proteins and cells of the present invention.

Production of cat immune sera enriched for antibodies to gametogenic stages:

Sera from cats which were infected and then subsequently challenged with mouse brain-derived tissue cysts were tested for reactivity to extracts of infected cat gut material by Western blot analysis. Sera from one specific cat, designated Queen 2, demonstrated reactivity to particular ICG sections in which the presence of T. gondii had been shown by immunofluorescence assay. Queen 2 was originally infected with 100 mouse brain-derived tissue cysts, did not shed oocysts, and seroconverted to positive for tachyzoite antigens by day 39 post-infection. This sera was highly reactive to the asexual stage, tachyzoites. Therefore, to enhance the utility of this sera as a reagent for detection of gametogenic proteins, this sera was used in conjunction with a western blot of infected cat intestinal cell lysates to obtain a fraction enriched in antibody reactive to the gametogenic proteins. The enrichment of the Queen 2 sera (also referred to herein as Q2 sera) was performed as follows:

A 12% SDS-PAGE gel was prepared according to standard methods (Laemmli, 1970, Nature 227, 680-685). 1000 μg of solubilized ICG protein, prepared as described above, was loaded on 20×20×0.1 cm gel and run at 8 V/cm for 5 hours. Toxoplasma tachyzoite (TZ) antigen, prepared from solubilized tachyzoites, was used as a control. Separated proteins were transferred to nitrocellulose according to standard procedures for western blotting. After transfer, the nitrocellulose filter was blocked with 4% (w/v) dry milk powder in PBS (pH 7.5), and incubated with a 1:200 dilution of immune cat (Queen 2) antiserum at room temperature for 5 hours with gentle shaking. The filter was then washed with PBS (pH 7.5). After washing, a 0.5 cm strip was cut off the end of the filter and incubated with a 1:1000 dilution of alkaline phosphatase labeled goat anti-cat IgG antibody at room temperature for 1 hour. The strip was stained with 5-bromo-4-chloro-3-indolylphosphate p-toluene salt/nitroblue tetrazolium chloride substrates (BCIP/NBT)(available from Gibco/BRL). The areas of the gel that stained with BCIP/NBT substrates represented ICG protein bands which were recognized by IgG antibodies in immune cat serum.

The regions of interest that were visualized on the BCIP/NBT-stained end strip were cut from the remainder of the filter, and the bound antibody eluted with 0.1 M glycine (pH 2.8), 1 mM EDTA at room temperature for 10 minutes. The antibody in glycine was neutralized with 10 mM Tris (pH 9.0), 0.02% NaN₃ was added, and the solution was stored at 4° C. The purified antibody was analyzed by Western blot of ICG to monitor successful recovery of the eluted antibody, verifying recovery of antibody that reacted with the appropriate molecular weight region of the ICG western blot. This antibody preparation is referred to herein as absorbed immune serum or sera.

The absorbed immune serum was used to isolate nucleic acid molecules herein designated Q2-4, Q2-9, Q2-10, and Q2-11 as follows: E. coli Y1090 was infected with approximately 3.2×10⁵ PFU and then evenly spread on 8 LB-amp agarose culture plates. The rest of the screening procedure was as described for immunoscreening with antisera Q4-1959 (Example 2), with the following exceptions: the primary antibody was used at a 1:200 dilution, and the secondary antibody was a 1:1000 dilution of AP-conjugated goat anti-cat IgG. Of the 3.2×10⁵ plaques screened in this manner, 4 nucleic acid molecules capable of expressing proteins recognized by absorbed immune serum were plaque purified. The results of assays to characterize these nucleic acid molecules are summarized in Table 9.

TABLE 9 Nucleic Acid Molecules Selected with Absorbed Immune Sera ORIGINAL DETECTION EXPRESSION pDVAC REACTIVITY SEQ ID NO DESIGNATION ICG UCG TZ BZ pTrCHIS λCRO IN VITRO IN VIVO SERUM IS  9 Q2-4 2+ − + 2+ ND + ND ND + − 13 Q2-9 + − + + − − ND ND + − 15 Q2-10 + − + + ND + ND ND + − 17 Q2-11 − − + + ND + ND ND + − Table 9 Legend: See Legend for Table 2.

Selected nucleic acid molecules identified by screening for the expression of proteins recognized by absorbed immune serum were subcloned and sequenced as described in Example 2.

Sequence analysis of nucleic acid molecules selected for expression of proteins recognized by absorbed immune serum:

The nucleic acid molecules selected for expression of proteins recognized by absorbed immune serum were sequenced as described above. BLASTn and BLASTp homology searches were performed on these sequences using the NCBI GenBank™ non-redundant (nr) nucleotide (n) and amino acid (p) databases, and the dbEST (est) database as described above. The results of these searches are summarized in Table 3. Nucleic acid molecule Q2-9 was sequenced again and some changes found between the first and second sequence. The resequenced nucleic acid molecule is referred to herein as Q2-9-a.

The sequence data described above were used to design unique primers specific to each nucleic acid molecule of the present invention. These primer sequences are listed in Table 4. The unique primers listed in Table 4 were used in reverse transcriptase-polymerase chain reaction (RT-PCR) assays to assess the expression of the particular nucleic acid sequence in ICG, bradyzoites and tachyzoites. The results of these assays are summarized in Table 9.

Recombinant nucleic acid molecules, protein molecules and cells including sequences encoding T. gondii antigenic proteins and sequences from the vector Prcro/T2ori/RSET-B:

Recombinant molecules containing T. gondii nucleic acid molecule operatively linked to lambda phage transcriptional control sequences and to a fusion sequence encoding a poly-histidine segment in the vector Prcro/T2ori/RSET-B, were produced essentially as described above, resulting in the production of recombinant molecule. The resulting recombinant molecules were transformed into E. coli to form recombinant cells using standard techniques as disclosed in Sambrook et al., ibid. Immunoblot analysis of expression of immunogenic T. gondii proteins by these recombinant cells is summarized in Table 9.

Example 8

This Example describes the construction of several cDNA expression libraries of the present invention.

A T. gondii tachyzoite cDNA expression library, a T. gondii infected cat gut (ICG) cDNA library (constructed from seven day post infection infected cat gut material, which is a mix of both cat intestinal cDNA and T. gondii gametogenic cDNA), and an uninfected cat gut (UCG) cDNA expression library were from total RNAs as follows:

Isolation of Total RNA From Tachyzoites: Total RNA from tachyzoites was prepared using Tri-Reagent™ (available from Molecular Research Center, Inc, Cincinnati, Ohio) according to the manufacturer's directions. Briefly, 4×10⁹ tachyzoites were resuspended in 6 ml of TriReagent with a syringe and 18 gauge needle. Successive triturations were made with 20 gauge and 22 gauge needles. A volume of CHCl₃ equal to one-fifth the original volume of TriReagent® was added and the mixtures were shaken for 15 seconds. The aqueous and organic phases were then separated by centrifugation. Total RNA was recovered from the aqueous phase by precipitation in isopropanol.

PolyA⁺ RNA was isolated from total RNA using Pharmacia mRNA purification kit (available from Pharmacia Biotech Inc., Piscataway, N.J.).

Isolation of Total RNA from Other Sources: The method of isolation of total RNA from various tissues was the same for all tissues. The only variable was the starting material. For example, to obtain RNA from infected cat gut (ICG) or uninfected cat gut (UCG), the epithelial layer of a fifteen square centimeter section of gut was scraped into 6 ml of Tri-Reagent and processed as described above. RNA from mouse was obtained from 1 gm of mouse brain and treated with Tri-Reagent as described above. RNA from bradyzoites was obtained from 7,000 tissue cysts propagated in mouse brain, obtained as described, and treated with Tri-Reagent as described above.

PolyA⁺ mRNA was isolated from total RNA using Pharmacia mRNA purification kit (available from Pharmacia Biotech Inc., Piscataway, N.J.).

Preparation of λ cDNA libraries:

The ZAP-cDNA® synthesis kit (available from Stratagene) was used according to manufacturer's instructions to synthesize cDNA. Briefly, 5 or 10 μg of PolyA⁺ mRNA (prepared as described above) was reverse transcribed using Superscript® reverse transcriptase and 0.6 mM dGTP, dATP, dTTP, and 0.3 mM 5-methyl dCTP and 1.4 μg of oligo dT linker primer supplied with the ZAP-cDNA® Synthesis Kit. The second strand was made by digesting the RNA template with RNaseH and priming second strand synthesis with DNA polymerase I. The cDNA was then ligated into the Uni-ZAP® XR lambda insertion vector (available from Stratagene), packaged and amplified to produce tachyzoite and ICG cDNA libraries.

5 μg of polyA+ RNA was used to prepare the ICG cDNA library, and 10 μg of polyA+RNA was used to prepare the tachyzoite cDNA library. For each library, 100 ng of double stranded cDNA was ligated and packaged and gave approximately 1.5×10⁶ unique nucleic acid molecules. The average size of the cloned inserts was 1.9 Kb in the tachyzoite cDNA library, and 2.1 Kb in the ICG cDNA library.

Example 9

This Example describes the construction and identification of cDNA sequences encoding near full-length T. gondii nucleic acid molecules encoding immunogenic T. gondii proteins.

Two of the molecular libraries described above were used to isolate near full-length T. gondii nucleic acid molecules encoding immunogenic T. gondii proteins: the tachyzoite cDNA library and the ICG cDNA library constructed from seven day post infection infected cat gut material.

The general approach to isolating nucleic acid sequences representing full length, or near full-length cDNA sequences was as follows: First, the MacVector DNA analysis program was used to design DNA primers for each of the Toxoplasma sequences cloned in an expression vector as herein described. These primers were then used in a PCR reaction in which the template was either of the Toxoplasma cDNA libraries herein described. The presence of a positive band on an agarose gel following PCR was diagnostic of the presence in the cDNA library of a nucleic acid molecule with homology to the primers. A near full-length cDNA molecule having sequence homology with the genomic DNA sequence designated Q2-4 was obtained by a direct hybridization screen of the libraries using radiolabeled clone-specific PCR fragments as templates. The isolation of one of these near full-length sequences is herein described in detail as representative of the methods used to isolate all of the near full-length sequences identified by this strategy.

A cDNA sequence representing a near full-length gene having homology to a nucleic acid sequence herein designated Q2-4 (isolated from the Toxoplasma genomic DNA library) was isolated from the infected cat gut (ICG) cDNA library by hybridization screening as follows: E. coli Y1090 was infected with approximately 1×10⁶ PFU of the Toxoplasma ICG cDNA library and then plated at a density of about 50,000 plaques per 150 mm agar plate. The resulting plaques were transferred to nitrocellulose filters. The filters were then soaked in denaturing solution (1.5 M NaCl, 0.5 M NaOH) for two minutes, neutralization solution (1.5 M NaCl, 0.5 M Tris, pH 8) for five minutes, and then rinsed several times in 2×SSC (150 mM NaCl, 15 mM Na citrate, pH 7). The DNA bound to the filters was crosslinked using a Stratalinker® UV crosslinker (available from Stratagene) according to the manufacturer's directions.

A radioactive hybridization probe was made by incorporating ³²p into clone-specific template DNA using a Prime-It® II random primer labeling kit (available from Stratagene) following the manufacturers directions. The template was a PCR fragment generated by using two primers specific for Q2-4. For each 100 μl reaction, 30 ng of Toxoplasma genomic DNA was PCR amplified using 200 mM of each dCTP, dGTP, dTTP, dATP, 200 nM of each specific primer, 2.5 mM MgCl₂, 20 mM Tris pH 8.4, 50 mM KCl, and 2.5 units Taq DNA polymerase (available from The Perkin Elmer Corp.) for thirty-five cycles in a Perkin-Elmer Gene Amp PCR System (available from The Perkin Elmer Corp.).

The nitrocellulose filters containing crosslinked DNA were hybridized in 2×PIPES buffer (10 mM piperazine-N, N′-bis[2-ethanesulfonic acid] (pH 6.5), 400 mM NaCl), 50% formamide, 0.5% SDS, 100 mg/ml denatured salmon sperm DNA and 10⁷ cpm/ml of the radioactive hybridization probe. The filters were incubated with this hybridization solution overnight at 42° C. The next day the filters were washed in 0.1×SSC, 0.1% SDS and then exposed to X-ray film (available from Kodak, Rochester, N.Y.) in order to visualize positive plaques.

Plaques in the area corresponding to the positive signals were picked into SM buffer (50 mM Tris, pH 7.5, 100 mM NaCl, 8 mM MgSO₄, and 0.01% gelatin) and the phage replated at a lower density. The same screening procedure was repeated three or four times until a pure plaque corresponding to a full length cDNA nucleic acid sequence representing Q2-4 was isolated.

After plaque purification, the nucleic acid molecules were mapped and the areas of interest sequenced using primers specific to the original clone, long fragment PCR, and cycle sequencing of the large fragments.

Example 10

This Example describes the expression in a eucaryotic cell of nucleic acid molecules encoding immunogenic T. gondii proteins, and DNA vaccination with nucleic acid molecules encoding immunogenic T. gondii proteins.

Cloning into a eucaryotic expression vector(pDVacI):

Inserts from eight clones (OC-2, OC-13, OC-14, OC-22, Tg-41, Tg-45, Tg-50, 4CQA-11) were ligated into the pDVacI expression vector. This vector contained a eucaryotic promoter from cytomegalovirus (CMV), followed by the start codon and signal sequence for a mouse kappa immunoglobulin gene. An EcoR I site was inserted in frame downstream to the signal sequence. This allowed the insertion of Eco RI fragments directly from the original lambda phage. The nucleic acid molecules produced by insertion of nucleic acid molecules encoding immunogenic T. gondii proteins into pDVacI are referred to herein as pDVacI:Toxoplasma nucleic acid molecules. If the EcoR I inserts represent nucleic acid sequence that is entirely open reading frame, then the protein product expressed from these inserts may be in frame with a C-terminal fusion consisting of both a poly histidine track and amino acid sequence representing an epitope from the human myc gene as a reporter sequence. The N-terminal fusion adds 49 amino acids, or about 5.4 kD to the protein encoded by the T. gondii nucleic acid molecule, and the C-terminal fusion adds 38 amino acids, or about 4.2 kD, to the fusion protein.

Expression in vitro:

Direct sequencing of the inserts in each plasmid confirmed the production of eight different pDVacI:Toxoplasma nucleic acid molecules. DNA from these molecules was then tested for eukaryotic expression of antigenic T. gondii proteins by transfecting BHK cells in vitro with DNA isolated from the pDVacI:Toxoplasma nucleic acid molecules. Analysis of the eukaryotic expression products of the pDVacI:Toxoplasma nucleic acid molecules was done by western blot on cell lysates and on supernatants from the transformed BHK cells. Either a monoclonal reactive with the myc epitope or antibody specific to each clone was used as the primary antibody. Seven out of the eight plasmid constructs expressed a protein in vitro. See Table 10.

TABLE 10 Analysis of Clones in Eucaryotic Expression Vector and DNA Vaccination Size (KD) Expression Sero- Expressed in in vitro conversion Clone pDVac EU/ug DNA* Pellet Super (# of Mice)** OC-2 40 0.3/0.4 + + 5/5/5 OC-13 38   0/0.23 + + 0/0/4 OC-14 32 7.7/3.8 − − *** OC-22 40  0.5/0.44 + + 4/5/5 Tg-41 33  23/1.8 + + 0/1/5 Tg-45 26 0/0 + + 3/5/5 Tg-50 55 4.0/4.0 + + 5/5/5 4cqa-11 25 0.95/5.3  + + 0/0/0 Table 10 legend: *The first and second numbers represent the endotoxin units (EU)/ug of DNA for the first and second immunizations respectively. **The numbers represent the # of mice that sero-converted at the 4, 7, and 9 week bleeds, respectively, out of the group of five that were injected. ***Antigen for Nt4 protein was not available to analyze for these sera samples.

Expression in vivo

100 ug of each pDVacI:Toxoplasma nucleic acid molecule was injected intradermally into five mice. The administrations were at day zero and week five; bleeds were collected at weeks four, seven and nine. The mouse sera were used to determine if the DNA vaccination with each clone elicited a serological response to the cloned fusion protein. This was measured by western blot analysis with the protein expressed in the BHK lysates. Six of the eight clones induced antibodies in mice by week nine, see Table 10.

Reactivity of antibody raised against recombinant OC-1 protein:

Purified recombinant protein expressed by an expression vector containing the nucleic acid sequence referred to as OC-1 (SEQ ID NO:70) was used to immunize mice and rabbits by methods well known in the art. The animals were bled, and serum collected used in immunofluorescence assays against infected and uninfected cat gut tissue. The results of these assays showed that antibody raised, in mice and rabbits, to recombinant OC-1 protein bound to most of the enteroepithelial stages in the infected cat gut. The antiserum did not react with uninfected cat gut.

Example 11

This example describes the construction of a Toxoplasma gondii EMBL3 genomic library from tachyzoites grown in tissue culture. This Example further describes isolation of near full-length nucleic acid molecules encoding stage specific T. gondii antigenic proteins.

An EMBL3 library of Toxoplasma genomic DNA was constructed using standard molecular cloning methods, well known to those skilled in the art of cloning (see, for example, Sambrook, et al., ibid.). In brief, Toxoplasma genomic DNA, prepared from tachyzoites as herein described, was partially digested with Sau3A I, using a series of different ratios of units of enzyme to μg of DNA. Digestions were incubated at 37° C. for one hour. Ratios of 0.06, 0.03, and 0.015 units of enzyme per μg of DNA produced high molecular weight DNA fragments which were then run on a preparative agarose gel. The fraction of the gel corresponding to DNA in a size range of between 15 and 20 Kb was excised. The DNA fragments were extracted from the gel, and the amount of extracted DNA quantitated. The EMBL3 library was then constructed using this DNA and the Lambda EMBL3/BamH I Vector Kit (available from Stratagene). The manufacturer's instructions were followed for all cloning steps, and the resulting ligated DNA was packaged using the Gigapack® II XL Packaging Extract (available from Stratagene). Packaging and amplification followed the manufacturer's specifications. The resulting library is referred to herein as the EMBL3:Toxoplasma genomic library.

The EMBL3:Toxoplasma genomic library was plated at a density of 50,000 plaques per 150 mM agar plate and the plaques transferred to a nitrocellulose filter. The filters were soaked in denaturing solution (1.5 M NaCl, 0.5 M NaOH) for two minutes, neutralization solution (1.5 M NaCl, 0.5 M Tris, pH 8) for five minutes, rinsed several times in 2×SSC (150 mM NaCl, 15 mM Na citrate, pH 7), and the DNA crosslinked using a Stratalinker® UV crosslinker (available from Stratagene) according to the manufacturer's instructions.

The EMBL3:Toxoplasma genomic library was screened with probes made from PCR amplified nucleic acid molecules isolated by immunoscreening the λ gt11:Toxoplasma genomic library. The primers used to generate these probes were derived using the MacVector Sequence Analysis program and the sequences of nucleic acid molecules encoding T. gondii antigenic proteins isolated from the λ gt11:Toxoplasma genomic library.

The filters were hybridized in 2×PIPES buffer (10 mM piperazine-N,N′-bis[2-ethanesulfonic acid] (pH 6.5), 400 mM NaCl), 50% formamide, 0.5% SDS, 100 μg/ml denatured salmon sperm DNA (available from Sigma) and 10⁷ cpm/ml of radioactive hybridization probe. The filters were hybridized overnight at 42° C. The next day the filters were washed in 0.1×SSC, 0.1% SDS, and then exposed to X-ray film (Kodak).

Plaques in the area corresponding to the positive signals were picked into SM buffer (50 mM Tris, pH 7.5, 100 mM NaCl, 8 mM MgSO₄, and 0.01% gelatin) and the phage replated at a lower density. The same screening procedure was repeated three or four times until a pure plaque hybridizing with a nucleic acid molecule isolated by immunoscreening the λ gt11:Toxoplasma genomic library was isolated. After plaque purification, the nucleic acid molecules were mapped and the areas of interest sequenced using primers specific to the original clone, long fragment PCR, and cycle sequencing of the large fragments.

Long fragment PCR was done with a Perkin-Elmer XL PCR kit (available from The Perkin-Elmer Corp., Foster City, Calif.) as follows: A 100 μl reaction was separated into two layers with a wax bead so one would have a hot-start reaction. The lower layer contained 1×XL PCR buffer supplied with the kit, 40 pM each of the forward and reverse primers, SC1011 and SC1002, (supplied by the manufacturer with the XL PCR kit, 2.5 mM each dNTP, 1.1 mM Mg(OAc)₂. The upper layer contained 1×XL buffer, 4 units of rTth DNA polymerase (available from The Perkin-Elmer Corp.) and about 5 ng of the plaque purified EMBL3 :Toxoplasma genomic DNA as the template. The reaction was done in a Hybaid thermocycler (available from Hybaid Ltd., Middlesex, UK), and the reaction products were resolved on a 0.6% agarose gel.

Example 12

This Example describes the detection of T. gondii oocysts in cat feces by PCR amplification of nucleic acid sequences homologous to nucleic acid sequences encoding immunogenic T. gondii proteins of the present invention. Specifically, this example describes a rapid PCR dipstick method for the detection of oocysts in feces.

Naive cats were infected per os by 1000 mouse-brain derived tissue cysts of T. gondii strain C at day zero. Feces from each animal were collected, if available, on a daily basis starting at day zero and each day for 19 days post infection (PI). A portion of the feces was treated by the standard sugar floatation method (Dubey, J. P., Swan, G. V., and Frenkel, J. K. 1972, Journal of Parasitology. 58: 1005-1006) and the oocysts visualized using a microscope and counted on a haemacytometer. A portion of each feces was also suspended in PBS, vortexed and a small sample obtained by dipping an IsoCodeJ™ dipstick (available from Schleicher & Schuell, Keene, N.H.) into the fecal solution. The dipstick was allowed to air dry and then washed in 500 μl of distilled water by vortexing the stick end and water in a tube for 10 seconds. Material adhering to the filter was then eluted in 50 μl of fresh distilled water by heating to 95° C. for 30 minutes. The remaining supernatant was then used for standard hot start PCR, according to methods well known in the art, using primers representing DNA sequences from nucleic acid molecules encoding T. gondii antigenic proteins. The results of an experiment in which primers derived from nucleic acid molecule OC-2 were used are shown in Table 11. The results of this experiment demonstrated that the PCR detection method was at least as sensitive at detecting oocysts in fecal matter as the conventional floatation method.

TABLE 11 PCR Analysis of Cat Feces #3528-U #3512-I #3515-I PCR PCR PCR Day Oocysts/gm Dipstick Day Oocysts/gm Dipstick Day Oocysts/gm Dipstick Pl Float Oc2 Pl Float Oc2 Pl Float Oc2  0 0 −  0 0 −  0 0 −  1 0 −  1 0 −  1 0 −  2 0 −  2 0 −  2 0 −  3 0 −  3 0 −  3 0 −  4 0 −  4  4 1 × 10e6 +  5 0 −  5 1 × 10e4 +  5 5 × 10e6 +  6  6 3 × 10e5 +  6 1 × 10e6 +  7 0 −  7 1 × 10e6 +  7  8  8 1 × 10e6 +  8 2 × 10e5 +  9 0 −  9 1 × 10e6 +  9 7 × 10e4 + 10 0 − 10 1 × 10e5 + 10 0 + 11 0 − 11 1 × 10e5 + 11 0 − 12 12 0 + 12 0 − 13 13 0 − 13 0 − 14 14 0 − 14 0 − 15 0 − 15 0 − 15 0 − 16 16 16 0 − 17 17 17 0 − 18 18 0 − 18 0 − 19 0 − 19 0 − 19 0 −

A series of additional experiments was performed in order to investigate further the PCR dipstick method for the detection of oocyts in feces. In this set of experiments, the following methods were used to produce T. gondii infected cats, and to detect oocysts in the feces of the infected cats. T. gondii C-strain tissue cysts were obtained by orally infecting 6-8 week old Swiss Webster mice with a sub-lethal dose of mouse brain derived tissue cysts. At six weeks post infection, the animals were euthanized with CO₂ and the brains were removed and placed in 30% Dextran in HBSS (Gibco/BRL). The brains were then homogenized with a Tissuemizer (Tekmar Co., Cincinnati Ohio) and centrifuged at 5,000×g's for 10 min at 4° C. The pellet was resuspended in HBSS and the tissue cysts were counted. The tissue cysts were diluted with PBS to the appropriate concentration for oral administration to cats at the back of the throat using a 1 ml syringe. A total of twenty cats was used in this study: seventeen were experimentally infected with 1000 tissue cysts and three were used as uninfected controls. All cats were housed in separate cages and feces were collected at the day of infection and daily for the next 21 days. On average there were approximately twelve samples per cat. The fecal samples were stored at 4° C. until tested, which was within two weeks of collection.

Conventional quantification of oocysts in feces was based on the sugar flotation method of Dubey and Beattie, 1988, and is described in full as follows. Each fecal sample was weighed and then 2 grams of feces were mixed with 15 ml of sugar solution (53 gm sugar, 100 ml of water). Following solubilization with a tongue depressor, the mixture was passed through two layers of gauze. The filtrate was poured into a 15 ml conical tube and centrifuged at 1,200×g for 10 minutes. The top 3 ml of the sample was added to 13 ml of sugar solution and centrifuged as above. The top 3 ml of the second flotation was added to 13 ml of water and centrifuged at 1,200×g for 10 minutes. The resulting oocyst pellet was resuspended in 1 ml of water and the oocysts counted using a hemacytometer. Alternatively, the entire fecal sample was solubilized in PBS by adding five ml of PBS per gram of the pre-weighed feces in a 250 ml plastic beaker. After one hour at room temperature, a tongue depressor was used to thoroughly suspend the feces. Five ml of the fecal slurry was added to a 15 ml tube containing 5 ml of 2× sugar solution and inverted several times. The tube was then centrifuged at 1,200×g for 10 minutes. The top 3 ml of the sample was subjected to a second sugar flotation, resuspended, and counted as described above.

Analysis of the fecal samples by the PCR dipstick method was performed as follows. One ml aliquots were taken, prior to further processing for floatation, from each of the initial fecal slurries described above. Samples were collected directly onto dipsticks, either by spotting 10 ul onto each dipstick filter or by directly dipping the dipstick into the fecal slurry. The filters were then dried at room temperature and the filter portion of the dipstick was cut off into a sterile 1.5 ml centrifuge tube. The filter was washed with 500 ul of sterile distilled water by vortexing for 8 seconds. The wash was removed and 50 ul of sterile water was added to the tube and adherent oocyst DNA eluted by heating at 95° C. for 1 hour. The filter was removed with a sterile tip and the sample stored (also referred to as the dipstick eluate) at −20° C.

Primers specific to two T. gondii genes, B1 and OC-2, were used in the amplification reactions. The primers for the B1 gene (Burg, et al., 1989, Journal of Clinical Microbiology, 27: 1787-1792) were B1 forward (5′-GGA ACT GCA TCC GTT CAT GAG-3′, herein referred to as SEQ ID NO:332), B1 reverse (5′-TCT TAA AGC GTT CGT GGT C-3′, herein referred to as SEQ ID NO:333), and a B1 internal primer (5′-GGC GAC CAA TCT GCG AAT ACA CC-3′, herein referred to as SEQ ID NO:334). The T. gondii OC-2 was isolated as herein described. The OC-2-derived primers were OC-2 forward (5′-GCA TCC TTG GAG ACA GAG CTT GAG-3′, herein referred to as SEQ ID NO:335), OC-2 reverse (5′-GGG TTC TCT TCT CGC TCA TCT TTC-3′, herein referred to as SEQ ID NO:336), and an OC-2 internal primer (5′-AGT CAG AAG CAG TCA AGG C-3′ herein referred to as SEQ ID NO:337). The PCR mixture contained 1×PCR buffer (10 mM Tris-HCl₂, 1.5 mM MgCl₂, 50 mM KCl), 0.2 mM deoxynucleoside triphosphates (Perkin-Elmer Cetus Corp., Norwalk, Conn.), 0.8 uM of each primer, 0.5 U of Gold AmpliTaq™ DNA polymerase (Available from Perkin-Elmer Corp.), and 1 ul DNA template in a total volume of 25 ul. The reaction mixture was denatured at 95° C. for 10 minutes, amplified for 42 cycles including a denaturation step at 95° C. for 30 seconds, annealing at 58° C. for 30 seconds, extension at 72° C. for 40 seconds, and a final extension for 5 minutes at 75 ° C. on an automated DNA thermal cycler (Model 9700, Perkin-Elmer, Foster City, Calif.). PCR products were analyzed by electrophoresis on a 1.5 % agarose gel, stained with ethidium bromide (0.5 ug/ml), and photographed on a UV transilluminator.

Following electrophoresis, the DNA products were denatured in 0.5 N NaOH and 1.5 M NaCl buffer for 30 minutes, transferred to a nylon membrane (Maximum Strength Nytran Plus, available from Schleicher & Schuell) overnight and cross-linked by exposure to UV light (UV Stratalinker 1800, available from Stratagene). The filters were incubated in prehybridization buffer (5×SSC, 1× Denhardt's reagent, 0.2% SDS, 1 mg/ml sheared DNA) at 42° C. for 2 hours and then in hybridization buffer (5×SSC, 1× Denhardt's reagent, 0.2% SDS, 1 mg/ml sheared DNA) containing 5′γ-³²P labeled oligonucleotide probe at 42° C. overnight. After overnight incubation, membranes were washed twice in 2×SSC, 0.1% SDS for 15 minutes at room temperature, and then washed twice in 0.2×SSC, 0.1% SDS at 55° C. for 1 hour. The filters were autoradiographed at −70° C. with Kodak XRR film.

Ethidium bromide-stained agarose gel and Southern hybridization analysis of PCR amplified products from oocyst-seeded fecal samples was performed in order to determine whether the dipstick method described herein resulted in a reduction of inhibition of PCR amplification of T. gondii-specific DNA in fecal slurries as compared with fecal slurries alone. Two sets of solutions, PBS and PBS/Feces (1:4 gm/ml), were seeded with four concentrations of oocysts, 2×10⁶, 5×10⁵, 5×10⁴, and 5×10³. Using the dipstick technique described above, this resulted in an estimated maximum number of oocysts in the PCR amplification tube to be 400, 100, 10, and 1 as indicated for the PBS solution and for the PBS/Feces solution respectively. Southern hybridization was performed using the OC-2 gene internal primer as the probe. Southern hybridization results and the ethidium bromide stained gel demonstrated that inhibition of PCR amplification of the exogenously added DNA was dramatically reduced (as compared with fecal extract alone) in samples prepared as per the dipstick assay as described above.

Three different paper supports were tested for their ability to support the PCR dipstick assay: IsoCodeJ™ Stix, S&S® #903™ (available from Schleicher and Schuell) and Nobuto Blood Filter Strips (available from Advantec, Pleasantville, Calif.). First, IsoCodeJ™ Stix were tested for the ability to bind oocysts. Oocysts were diluted into either PBS or a suspension of uninfected feces and PBS. The fecal dipstick procedure as described above was used to sample and elute DNA for PCR analysis. The concentration of oocysts per reaction was adjusted so that theoretical maximum could be 1, 10, 100, and 400 oocysts respectively. The amplification products were run on an agarose gel and stained as described above. According to this assay, oocysts diluted into PBS alone could be readily detected at 10 oocysts per ul of dipstick eluate with primers directed to the T. gondii OC-2 gene. In addition, oocysts in a suspension of feces and PBS could be detected when present at a concentration of between 10 and 100 oocysts per ul. This experiment demonstrates that the oocysts are bound to the IsoCodeJ™ Stix in the presence of feces, are eluted by heat, and following a wash and heat elution step are sufficiently free from inhibitors to be detected by PCR amplification.

Under these conditions, detecting 10 oocysts per ul of eluate from the IsoCodeJ™ Stix is equivalent to detecting oocysts at a concentration of 2.5×10⁵ oocysts/gram of feces. Several parameters were tested for their ability to increase the sensitivity of this test. First, two additional paper supports, S&S®#903™ and Nobuto Blood Filter Strips, were tested for both the ability to bind oocysts in the presence of solubilized feces, and the ability to support subsequent PCR detection of oocyst DNA. Each of these filter papers bound T. gondii oocysts, and subsequent PCR amplification with OC-2 primers detected the presence of T. gondii DNA. However, the sensitivity of detection for each of these papers was somewhat less than the sensitivity of the assay when using IsoCodeJ Stix™. All three paper supports were also tested for binding of oocysts in the presence of feces over a range of pH from 4 to 9. The S&S®#903™ and Nobuto Blood Filter Strips were most effective at pH 7. Binding of oocysts to the IsoCodeJ Stix™ was significantly increased at pH 9. All subsequent assays described below used IsoCodeJ Stix™ and pH 9 for binding of oocysts to dipsticks.

Another approach to increasing the sensitivity of the assay was to use primers from the B1 gene during the PCR amplification reaction. The B1 gene is a multicopy gene that is present at approximately 35 copies per T. gondii genome. Using a B1-specific primer resulted in a ten-fold increase in sensitivity, and produced an assay in which 1 oocyst/ul could routinely be detected. This level of sensitivity of the assay correlated with the ability to detect approximately 1×10⁴ oocysts/gram of feces.

The sensitivity and specificity of the PCR detection method was tested in experimentally infected animals using flotation and visualization of oocysts as the standard for quantification of oocysts. SPF cats were infected with mouse brain-derived tissue cysts and feces were collected from the cats for twenty-one days. Each sample was analyzed by both direct visualization and the dipstick PCR technique. Following gel electrophoresis of the products from PCR amplification, the results were scored as either positive or negative depending on the presence or absence of the correct gene-specific PCR product. Table 12 shows the results of PCR detection using both the B1 and OC-2 DNA primers for each individual fecal sample. The positive and negative predicative values were 93.2% and 97.2% respectively using the B1 gene DNA primers and 80.2% and 95.8% respectively using the OC-2 DNA primers.

TABLE 12 Sensitivity, specificity and predicative values for the PCR detection of oocysts in experimentally infected cat feces. Total Predictive Samples Sensitivity Specificity Value % Method +/− f/n^(a) f/p^(b) % % +/− Microscopy 69/176 0 0 100 100 100/100 PCR B1 Primers 64/171 5 5 94.7 96.7 93.2/97.2 OC-2 61/161 7 16 89.7 96.4 80.2/95.8 Primers ^(a)false negative ^(b)false positive

Example 13

A PCR ELISA was developed for the detection and quantification of PCR amplification products from the PCR dipstick method. In general, digoxigenin-labeled amplified product produced by the PCR dipstick detection method were detected by hybridization to an internal biotinylated B1 gene primer bound to microtiter wells. The concentration of PCR labeled digoxigenin fragment was determined using an alkaline phosphatase-linked anti-digoxigenin antibody (available from Boehringer Mannheim Biochemica Gmbh). The alkaline phosphatase activity level was then determined using a standard ELISA reader. This quantitative PCR ELISA method detected oocysts at a lower limit of 1×10⁴ oocysts/gram when tested with uninfected cat feces seeded with known concentrations of T. gondii oocysts. The method is described in detail as follows.

PCR amplification using B1 gene-specific primers was performed on eluates from the fecal dipstick method herein described. Amplification products were labeled by incorporation of digoxigenin-11-dUTP (DIG-11-dUTP) present in the reaction mix at 2.5 uM. The concentration of dTTP in this reaction mix was reduced to 22.5 uM. The resulting labeled fragment was detected using reagents from the PCR ELISA (DIG Detection) kit (available from Boehringer Mannheim Biochemica Gmbh, Mannheim, Germany). The procedure was as follows. Four ul of the primary amplification reaction product was added to 16 ul of denaturation buffer and incubated at room temperature for 10 minutes. This was mixed with 200 ul hybridization buffer that contained 20 pmol/ml of the biotinylated B1 gene probe. One-half of the hybridization reaction mixture was transferred to a well in a streptavidin-coated microtiter plate and incubated at 50° C. for 3 hours with shaking. The plate was washed with washing buffer five times at room temperature and incubated with 100 ul of anti-digoxigenin Fab conjugated with peroxidase at 37° C. for 45 minutes. Following five washes, 100 ul of ABTS substrate solution (available from Boehringer Marnheim Biochemica) was added to each well and the color was developed at room temperature for 45 minutes. The optical densities (OD) at 405 nm were read in a spectrophotometer (SpectraMAX 250, available from Molecular Devices Inc., Sunnyvale, Calif.) and analyzed with Soft Max Pro™ software (available from Molecular Devices Inc.).

Quantification of oocysts in feces by the PCR ELISA technique was compared with quantification by the microscopic analysis. Individual feces from six different cats were collected (as available) at various days post infection. Oocysts were then quantified for each sample by two separate techniques, microscopy and PCR ELISA. The results from each of these two methods were in good agreement. Standard regression analysis produced a correlation coefficient of 0.91.

Example 14

This example describes the detection of Cryptosporidium parvum oocysts and Giardia lamblia cysts in feces using the PCR dipstick detection method described above. Oocysts and cysts from C. parvum and G. lamblia respectively were detected by the dipstick PCR detection method, thereby demonstrating the usefulness of this method for the detection of cysts or oocysts from unrelated species.

Feline fecal samples from SPF cats were seeded with either C. parvum oocysts or G. lamblia cysts and used in the PCR detection method described herein. The primers used to detect C. parvum were specific for the C. parvum AWA gene, while the primers used to detect G. lamblia were specific for the G. lamblia ABB gene (Rochelle, et al., 1997, Applied and Environmental Microbiology 63:106-114).

In order to demonstrate binding of C. parvum oocysts to a dipstick in the presence of feline fecal slurry, aliquots of feline fecal slurry (1:4, mg/ml) were seeded with between 5×10² and 5×10⁶ C. parvum oocysts/ml. These samples were then tested for binding of the oocysts and subsequent PCR analysis according to the PCR detection methods described herein. The primers used in the PCR amplification were specific for the C. parvum AWA gene. The PCR amplified products were run on and agarose gel and stained with ethidium bromide. The C. parvum-specific primer primed amplification of a DNA product of the predicted mobility, in an oocyst concentration-dependent manner, from the dipstick eluate as described above. The results of this experiment demonstrated that C. parvum oocysts bound to a dipstick in the presence of feline fecal slurry, and that about 5×10² C. parvum oocysts/ml were detectable by the PCR detection method after binding to the dipstick under these conditions. Because 5×10² oocysts/ml was the lowest concentration tested, and the products were easily observable, the concentration of cysts detectable by this method is likely to be lower than 5×10² oocysts/ml.

In order to demonstrate binding of Giardia cysts to a dipstick in the presence of feline fecal slurry, aliquots of feline fecal slurry (1:4, mg/ml) were seeded with between 5×10² and 5×10⁵ G. lamblia cysts/ml. These samples were then tested for binding of the cysts and subsequent PCR analysis according to the PCR detection methods described herein. The primers used in PCR amplification were specific for the G. lamblia ABB gene. The PCR amplified products were run on and agarose gel and stained with ethidium bromide. The G. lamblia-specific primer primed amplification of a DNA product of the predicted mobility, in a cyst concentration-dependent manner, from the dipstick eluate as described above. The results of this experiment demonstrated that G. lamblia cysts bound to a dipstick in the presence of feline fecal slurry, and that about 5×10² G. lamblia cysts/ml were detectable by the PCR detection method after binding to the dipstick under these conditions. Because 5×10² cysts/ml was the lowest concentration tested, and the products were easily observable, the concentration of cysts detectable by this method is likely to be lower than 5×10² cysts/ml.

Example 15

This Example discloses a method of isolation of T. gondii nucleic acid molecules encoding immunogenic T. gondii proteins recognized by intestinal secretions from infected cats. This Example further discloses recombinant nucleic acid molecules and proteins of the present invention.

The production of intestinal secretions and from infected cats and the use of these secretions for screening for nucleic acid molecules encoding immunogenic T. gondii proteins are described herein in Example 6. Intestinal secretions collected from a single cat that had been previously infected with T. gondii were pooled and preabsorbed to remove antibodies directed against UCG and E. coli. The pooled, preabsorbed intestinal secretions are also referred to herein as MGIS antiserum. MGIS antiserum was used to immune screen an ICG cDNA library in order to identify and isolate nucleic acid molecules encoding immunogenic T. gondii proteins recognized by intestinal secretions from infected cats. Six nucleic acid molecules encoding immunogenic T. gondii proteins recognized by intestinal secretions from infected cats were identified and isolated using the following methods. These six nucleic acid molecules are referred to herein as MGIS4-2 (also herein referred to as SEQ ID NO:282 and SEQ ID NO:284, representing the coding strand and its reverse complement, respectively), MGIS4-4 (also herein referred to as SEQ ID NO:292 and SEQ ID NO:294), MGIS4-8 (also herein referred to as SEQ ID NO:306 and SEQ ID NO:308), MGIS6-5 (also herein referred to as SEQ ID NO:311 and SEQ ID NO:313), MGIS6-2 (also herein referred to as SEQ ID NO:326 and SEQ ID NO:328), and MGIS1-3 (also herein referred to as SEQ ID NO:329 and SEQ ID NO:331).

Absorption of MGIS Antibody

MGIS antiserum was collected, as previously described, from the cat intestine on weeks 6, 10, and 13 after infection, and on weeks 0, 1, 2, 3, 4, and 5 after challenge. Both pools of antisera were combined and used to screen the cDNA library, and are herein referred to as MGIS antiserum.

To remove anti-cat intestinal and anti-E. coli tissue reactive antibodies, the MGIS pools were absorbed to nitrocellulose (NC) filters coated with either cat intestinal proteins or E.coli proteins. Cat intestinal proteins used to coat the nitrocellulose filters were generated as follow. The epithelial layer of uninfected cat intestine was scraped on dry ice and the cells subsequently passed through several different gauge needles (No. 18, 21, and 23) 10 times each. The sample was frozen and thawed 3 times, and then sonicated on ice for 10 minutes. The protein extract was diluted to 400 ug/ml in PBS and immersed with the nitrocellulose at room temperature for 1 hour, and was then blocked with 4% milk in PBS for 30 minutes. Similarly, XL-1 blue E.coli cells were resuspended in PBS and bacterial protein extracts prepared similar to the cat intestinal proteins. The bacterial extract was diluted to a final concentration of 2.3 mg/ml in PBS and bound to the filter in a manner similar as the cat intestinal extract.

MGIS antiserum was diluted 1:20 with 4% milk in PBS and absorbed sequentially to both the cat intestinal and bacterial protein coated filters at room temperature for 1 hour. To demonstrate that all UCG and E. coli-reactive antibody had been removed from the MGIS antiserum preparation, the MGIS antiserum subjected to Western blot analysis which showed that the absorbed antibody had no reactivity to either the cat intestinal proteins or to the bacterial extract.

Immune Screening of T. gondii cDNA Phage Library

The ICG cDNA library was constructed from infected cat intestinal mRNA, and the cDNA product cloned into the EcoRI/Xhol sites of the Uni-Zap XR vector. Toxoplasma-specific nucleic acid molecules represented approximately 10% of the library. The ICG cDNA phage library was plated to approximately 2-5×10^(e4-5) pfu per 135 mm plates with XL-1Blue MRF′ cells (available from Stratagene). Ten plates were treated in the following manner after the phage were pinhead in size. Nitrocellulose filters that had been previously treated with IPTG were overlaid on top of the phage and incubated at 37° C. for 5 hours. The filters were marked, washed with TBS, pH 8.0, blocked with 4% milk in TBS, and incubated with MGIS antiserum at room temperature overnight. After washing three times with TBS, horse-radish peroxidase (HRP)-labeled goat anti-cat IgA antibody (Bethyl Lab. Inc.) was diluted 1:350, and incubated with the filters at room temperature for 2 hours. The color indicator was developed with 4-chloro-1-naphthol substrate and H₂O₂. Forty-one positive clones were selected for further screening.

Hybridization Screening and Clone Purification

Selected clones were replated on NZYM plates, and forty-eight individual plaques randomly picked and resuspended in 100 ul of SM buffer. Insert DNAs were PCR amplified in a final volume of 12.5 ul containing 1 ul of template DNA, 50 mM KCL, 10 mM Tris-HCL (pH 8.3), 2 mM MgCl₂, 0.2 mM each dNTP, 0.2 mM each of T3 and T7 vector specific oligonucleotide primers, and 0.3 units of Taq polymerase. Amplification was performed by 1 cycle of 95° C. for 3 min., 35 cycles of 95° C. for 30 sec., 50° C. for 30 sec., and 72° C. for 2 min., followed by 75° C. for 5 min. on a Perkin Elmer 9600 thermocycler. The PCR amplified products were analyzed on a 1% agarose TBE gel, and the DNA transferred to a nylon membrane.

A hundred nanograms of T. gondii genomic DNA was labeled using the Megaprime DNA labeling systems (available from Amersham International) and used as a probe to analyze the PCR amplified DNA fragments on the nylon membrane. The membrane was pre-hybridized in 5×SSPE (1×SSPE: 0.18M NaCl, 10 mM NaH₂PO₄, and 1 mM EDTA pH 7.7), 0.5% SDS, 5×Denhardt's solution, and 0.1 1 mg/ml single stranded salmon sperm DNA at 65° C. for 3 hours. Membranes were then hybridized overnight at 65° C., and then washed with 2×SSPE, 0.1% SDS at room temperature for 10 min., twice, and 0.2×SSPE, 0.5% SDS at 65° C. for 1 hour, twice. The membrane was exposed to film at −70° C. overnight. Twenty-three clones were thus shown to contain T. gondii-specific DNA, with an insert size of 1-2 Kb in length.

Clone Identification by Phage Drop Test

Each of the twenty-three T. gondii-specific clones were rescreened to confirm reactivity with MGIS antiserum. Phage clones were diluted 1:10e7 from the SM buffer stock, and 3 ul of this dilution (˜5-50 phage) was spotted onto a NZYM/XL-1Blue MRF′ agar plate, and incubated at 37° C. for 5 hours. Afterwards, an IPTG pre-treated nitrocellulose filter was overlaid onto the agar surface and incubated for another 5 hours. The filter was marked, washed with TBS buffer (pH 8.0) at room temperature for 15 minutes, and blocked with 4% milk in PBS for 30 minutes. Pre-absorbed MGIS antiserum was added to the filter and allowed to react at room temperature overnight. The filter was subsequently washed in TBS at room temperature for 10 minutes, three times. Goat anti-cat IgA polyclonal antibody labeled with HRP (available from Bethyl Laboratories, Inc.) was diluted 1:300 in TBS buffer and incubated with the filter at room temperature for 2 hours. The filter was washed and developed using 4-chloro-1-naphthol substrate and H₂O₂. Thirteen of the 23 clones were identified as positive for expressing antigen recognized by IgA in the MGIS antiserum.

DNA Sequencing

The DNA inserts in the thirteen clones identified as positive were subcloned into the TA vector using the TA cloning kit (available from Invitrogen). Individual clones were PCR amplified using the T3 and T7 vector-specific primers. The DNA fragments produced by PCR amplification were gel electrophoresed on a 1% agarose gel, and gel purified using a Qiagen Gel Purification kit (available from Qiagen). Plasmid DNA was purified using the 5 prime 3 prime Perfect Plasmid DNA Preparation kit (available from 5 Prime 3 Prime Inc., Boulder, Colo.). DNA sequencing was carried out on six of the T. gondii-specific DNA inserts using a Prizm dideoxy termination kit (available from Perkin Elmer) on an ABI 377 DNA sequencer (available from Applied Biosystems). TA sense and TA antisense oligonucleotide primers were used for DNA sequencing, and insert-specific oligonucleotide primers were used to generate internal fragment sequences. The only variation from this general protocol was in the case of MGIS4-4, where the Erase a Base system (available from Promega) was used to generate plasmids containing deleted fragments in order to facilitate sequencing. The primers used for sequencing each of the inserts were the following:

The primers used in sequencing MGIS4-2 are herein referred to as SEQ ID NO:275, SEQ ID NO:276, SEQ ID NO:277, SEQ ID NO:278, SEQ ID NO:279, SEQ ID NO:280, and SEQ ID NO:281. The primers used in sequencing MGIS4-4 are herein referred to as SEQ ID NO:285, SEQ ID NO:286, SEQ ID NO:287, SEQ ID NO:288, SEQ ID NO:289, SEQ ID NO:290, and SEQ ID NO:291. The primers used in sequencing MGIS4-8 are herein referred to as SEQ ID NO:295, SEQ ID NO:296, SEQ ID NO:297, SEQ ID NO:298, SEQ ID NO:209, SEQ ID NO:300, SEQ ID NO:301, SEQ ID NO:302, SEQ ID NO:303, SEQ ID NO:304, and SEQ ID NO:305. The primers used in sequencing MGIS6-5 are herein referred to as SEQ ID NO:309 and SEQ ID NO:310. The primers used in sequencing MGIS6-2 are herein referred to as SEQ ID NO:314, SEQ ID NO:315, SEQ ID NO:316, SEQ ID NO:317, SEQ ID NO:318, SEQ ID NO:319, SEQ ID NO:320, SEQ ID NO:321, SEQ ID NO:322, SEQ ID NO:323, SEQ ID NO:324, and SEQ ID NO:325. And the primers used in sequencing MGIS1-3 are herein referred to as SEQ ID NO:314, SEQ ID NO:315, SEQ ID NO:316, SEQ ID NO:317, SEQ ID NO:318, SEQ ID NO:319, SEQ ID NO:320, SEQ ID NO:321, SEQ ID NO:322, SEQ ID NO:323, SEQ ID NO:324, and SEQ ID NO:325 (note that the same primers were used for sequencing MGIS6-2 and MGIS1-3).

PCR Amplification of Feline and T. gondii DNA With Clone-specific Primers

The IgA selected MGIS clones were shown to be Toxoplasma specific by PCR amplification analysis. The following different cDNA samples were tested for the presence of DNA representing each of the six different IgA-selected nucleic acid molecules: a) uninfected cat gut (UCG); b) infected cat gut (ICG); c) T. gondii tachyzoite (TgTz); d) Toxoplasma bradyzoite (TgBz); and e) Toxoplasma genomic DNA (TgTz DNA). The preparation of UCG, ICG, Toxoplasma tachyzoite and bradyzoite cDNA was as described above. Toxoplasma genomic DNA was isolated from tachyzoites by phenol/chloroform/isoamylalcohol pH 8.0 extraction. Oligonucleotide sense and anti-sense primers specific to each of five MGIS-selected nucleic acid molecules were synthesized and used as primers in the PCR amplification reactions. The reaction condition were: 95° C. for 10 min., followed by 35 cycles of 95° C. for 30 sec., 58° C. for 30 sec., 72° C. for 40 sec; this was followed by 75° C. for 5 min. afterwards to complete the reaction. The amount of the different templates used in the PCR reactions (˜3-30 ng of DNA) , was empirically determined by comparison with a PCR amplified Toxoplasma tubulin gene product standard generated with each template. The oligonucleotide primers and the size of the expected products are listed in Table 13, below.

TABLE 13 Product MGIS Sense Primer Anti-Sense Primer Size Clone Position: Sequence Position: Sequence (bp) 1-3 1513: SEQ ID NO: 319 1858: SEQ ID NO: 320 346 4-2  168: SEQ ID NO: 276  594: SEQ ID NO: 279 427 4-4  455: SEQ ID NO: 285  775: SEQ ID NO: 290 331 4-8 2018: SEQ ID NO: 300 2310: SEQ ID NO: 301 293 6-2 1301: SEQ ID NO: 319 1646: SEQ ID NO: 320 346

The oligonucleotide primers specific for each of the five MGIS-selected nucleic acid molecules PCR amplified products only when the template DNA contained Toxoplasma DNA. There were no PCR amplified products in this assay when the template DNA was UCG cDNA. These results confirm the T. gondii origin of the MGIS-selected nucleic acid molecules.

Sequence Analysis

Homology searches of a non-redundant protein database were performed on all six MGIS-selected nucleic acid molecules, translated into all six reading frames, using the BLASTX program available through the BLAST™ network of the National Center for Biotechnology Information (NCBI) (National Library of Medicine, National Institute of Health, Baltimore, Md.). This database includes SwissProt+PIR+SPupdate+GenPept+GPUpdate+PDB databases. In addition, BLASTN homology searches were performed on these sequences using the NCBI databases including the non-redundant database of GenBank EST, and genembl. In all cases, the default parameters for the homology programs were used.

The highest scoring match of the homology search (BLASTX) of translation products of the nucleic acid sequence SEQ ID NO:282 (MGIS4-2) was to GenBank™ Accession No. prf 2208369A, a Homo sapiens signal peptidase 12 kD subunit protein. The protein encoded by nucleic acid residues 742-945 of MGIS4-2 (SEQ ID NO:282) showed about 44% identity to amino acid residues 12 to 79 of the protein represented by GenBank™ Accession No. prf 2208369A. At the nucleotide level, SEQ ID NO:282 showed 97% identity over 353 nt with te sequence represented by GenBank™ Accession No. W0680 (TgESTzy81e12.rl), an EST fragment isolated from T. gondii tachyzoite cDNA. The homology spans the region from nt 748 to nt 1097 of SEQ ID NO:282, and nt 15 to 365 of GenBank™ Accession No. W0680. There were no other significant homology matches to SEQ ID NO:282 nucleic acid sequence.

The highest scoring matches of the homology search (BLASTX) of translation products of the nucleic acid sequence SEQ ID NO:292 (MGIS4-4) were to proteins described as elongation factor 1-gamma, with the highest match to the sequence represented by GenBank™ Accession No. gi 2160158, described as “a protein similar to elongation factor” The protein encoded by residues 47-1222 of SEQ ID NO:292 showed about 37% identity to amino acid residues 5-414 of the protein represented by GenBank™ Accession No. gi 2160158. At the nucleotide level SEQ ID NO:292 showed 94% identity over 413 nt with an EST fragment, GenBank™ Accession No. N81326 (TgESTzy40a12.rl), an EST fragment isolated from T. gondii cDNA. The homology spans the region from nt 420 to nt 832 of SEQ ID NO:292, and nt 15 to 427 of GenBank™ Accession No.N81326. In addition, SEQ ID NO:292 showed 99% identity over 187 nt with an EST fragrnent, GenBank™ Accession No. W05869 (TgESTzy85a09.rl), an EST fragment isolated from T. gondii cDNA clone. The homology spans the region from nt 757 to nt 943 of SEQ ID NO:292, and nt 62 to 248 of GenBank™ Accession No.W05869.

The highest scoring match of the homology search (BLASTX in the genembl database) of translation products of the nucleic acid sequence SEQ ID NO:329 (MGIS1-3) was to Herpesvirus Saimiri complete genome, represented by GenBank™ Accession No. X64346. The amino acid residues 777 to 1432 of the protein encoded by reading frame +2 of SEQ ID NO:329 showed about 36% identity to amino acid residues 106974 to 106517 of the protein represented by GenBank™ Accession No. X64346. At the nucleotide level, SEQ ID NO:329 showed 94% identity over 578 nt with an EST fragment, GenBank™ Accession No. AA520348 (TgESTzz69d04.rl), an EST fragment isolated from T. gondii bradyzoite cDNA. The homology spans the region from nt 1334 to 1910 of SEQ ID NO:329, and nt 5 to 571 of GenBank™ Accession No. AA520348.

The highest scoring match of the homology search (BLASTN of the non-redundant databases, GenBank+EMBL+DDBJ+PDB) of SEQ ID NO:311 (MGIS6-5) was to a T. gondii lactate dehydrogenase gene, represented by GenBank™ Accession No. TGU35118. SEQ ID NO:311 showed 99% identity over 1619 nt.

The highest scoring match of the homology search (BLASTX in the genembl database) of translation products of the nucleic acid sequence SEQ ID NO:326 (MGIS6-2) was to Herpesvirus Saimiri complete genome, represented by GenBank™ Accession No. X64346. Amino acid residues 751 to 1206 encoded by SEQ ID NO:326 showed about 36% identity to amino acid residues 106972 to 106517 of the protein represented by GenBank™ Accession No. X64346. At the nucleotide level, SEQ ID NO:326 showed 96% identity over 247 nucleotides with an EST fragment, GenBank™ Accession No. AA520348 (TgESTzz69d04.rl), an EST fragment isolated from T. gondii bradyzoite cDNA. The homology spans the region from nt 890 toll36 of SEQ ID NO:326, and nt 144 to 390 of GenBank™ Accession No. AA520348.

The highest scoring match of the homology search (BLASTX of the non-redundant GenBank CDS database including Translations+PDB+SwissProt+SPupdate+PIR) of translation products of the nucleic acid sequence SEQ ID NO:306 (MGIS4-8) was to a rice 26S protease regulatory subunit 4 homolog (TAT-binding protein homolog 2), represented by GenBank™ Accession No. P46466. 26S protease regulatory subunit 4 homologs representing other species also have high homology to a translation product of SEQ ID NO:306. The protein encoded by nucleic acid residues 465 to 1565 of SEQ ID NO:306 showed about 72% identity to amino acid residues 35 to 448 of the protein represented by GenBank™ Accession No. X64346. It should be noted a gap of 42 amino acids was required in the amino acid sequence encoded by SEQ ID NO:306 in order to achieve the sequence fit resulting in this high homology. At the nucleotide level, SEQ ID NO:306 showed 98% identity over 269 nucleotides with an EST fragment, GenBank™ Accession No. W35531 (TgESTzy90g01.r1), an EST fragment isolated from T. gondii cDNA. The homology spans the region from nt 668 to nt 936 of SEQ ID NO:326, and nt 23 to nt 291 of GenBank™ Accession No. W3553 1.

Example 16

This Example discloses the isolation and sequence analysis of a 1397 bp T. gondii nucleic acid molecule composed of four fragments isolated by subtractive selection from an infected cat gut cDNA library. Also described is an additional nucleic acid molecule representing the genomic DNA sequence immediately upstream (5′) of, and overlapping, the genomic DNA sequence encoding the cDNA sequence.

A 1397 bp T. gondii nucleic acid molecule, denoted nTG₁₃₉₇ (the coding strand of which is herein referred to as SEQ ID NO:343, and the reverse complement of which is herein referred to as SEQ ID NO:345), is a composite of four overlapping PCR amplified products isolated from an infected cat gut (ICG) cDNA library. Specifically, a first 424 bp fragment (representing nucleotide positions 709-1132 of SEQ ID NO:343), was isolated after two rounds of selection using the PCR-Select™ Subtraction kit (available from Clontech, Palo Alto, Calif.), using day eight, RsaI restriction enzyme digested ICG cDNA as tester, and similarly digested uninfected cat gut cDNA as driver DNA. Fragments enriched by the PCR-Select™ Subtraction selection process were digested with the restriction enzyme SmaI and cloned into SmaI site in the commercially available positive selection vector, QuanTox™ (available from Quantum Biotechnologies Inc., Laval, Quebec, Canada). The cloned inserts were subsequently sequenced using the oligonucleotide primers, T7 (TAATACGACTCACTATAGGG, herein referred to as SEQ ID NO:348) and T3 (ATTAACCCTCACTAAAGGGA, herein referred to as SEQ ID NO:347). A 424 bp T. gondii nucleic acid molecule, referred to herein as nTG₄₂₄, was isolated, cloned and sequenced by this method.

The orientation of nTG₄₂₄, as well as additional nucleic acid sequence representing cDNA sequence occurring downstream (3′) of nTG₄₂₄ was determined as follows. A 689 bp fragment including the 3′-end of the gene comprising nTG₄₂₄ was generated by PCR amplification of an ICG cDNA library constructed in the Uni-Zap XR insertion vector (available from Stratagene). The two primers used for this amplification reaction are represented by SEQ ID NO:358 (⁷⁰⁹ACAACGACCACGACATCAACTAC⁷³¹, derived from the sequence of nTG₄₂₄, also referred to as pRay8), and an adaptor oligonucleotide primer that hybridized to the cDNA poly A tail (GGCCACGCGTCGACTACT₁₇ from BRL/GIBCO, Gaithersburg, Md., herein referred to as SEQ ID NO:364). The superscript numbers at the beginning and end of the primer sequences described herein represent the location of the primer sequence relative to nTG₁₃₉₇ (SEQ ID NO:343). A resulting 689bp T. gondii nucleic acid molecule (also referred to as nTG₆₈₉) was cloned into PCR2.1 (available from Invitrogen, Carlsbad, Calif.), and sequenced using the M13 reverse oligonucleotide primers (CAGGAAACAGCTATGACC, herein referred to as SEQ ID NO:346) and the T7 oligonucleotide primer (SEQ ID NO:348). The sequence of nTG₆₈₉ revealed 266 bp of additional cDNA sequence (from 1133-1397 bp, relative to SEQ ID NO:343), with an overlap with nTG₄₂₄ from 709-1132 bp (relative to SEQ ID NO:343). There were three nucleotide differences between the sequence data for nTG₄₂₄ and the sequence data for nTG₆₈₉. Instead of a “T”, “C” and “T” nucleotide at positions 1159, 1166, and 1169 respectively, the sequence data for nTG₆₈₉ revealed a “C”, “T”, and “A” at those positions.

The remainder of the nucleic acid sequence of nTG₁₃₉₇ was determined in two PCR amplification steps using the ICG cDNA library as the template. The primers for the first PCR amplification were: a) an anti-sense oligonucleotide primer specific for nTG₄₂₄, having the sequence ⁹²⁹GTTGTCGTAGATGTCGTTGTAGTT⁹⁰⁶, and herein referred to as SEQ ID NO:359; and b) a Uni-Zap XR insertion vector-specific oligonucleotide primer (available from Stratagene, and referred to as Tp277) having the sequence, GGGAACAAAAGCTGGAGCTCCACC, and herein referred to as SEQ ID NO:354. In the first PCR amplification step, SEQ ID NO:359 and SEQ ID NO:354 were used to generate an 884 bp nucleic acid molecule, (825 bp of which was nTG₁₃₉₇-specific DNA sequence), that was then cloned into PCR2.1. The T. gondii-specific nucleic acid molecule is herein referred to as nTG₈₂₅. nTG₈₂₅ was sequenced using a TA sense oligonucleotide primer (having the sequence, CGAGCTCGGATCCACTAG, herein referred to as SEQ ID NO:350), and a TA anti-sense oligonucleotide primer (having the sequence, GCCAGTGTGATGGATATCTGCAG, herein referred to as SEQ ID NO:349), as well as a nTG₁₃₉₇-specific internal oligonucleotide primer having the sequence, ⁵⁶⁴GAGGAGATCGAACTTTGCTTGTGC⁵⁴¹, herein referred to as SEQ ID NO:361. Sequencing revealed that nTG₈₂₅ added an additional 604 bp to the sequence of nTG₁₃₉₇, from nucleotides 105-708 (relative to SEQ ID NO:343). nTG₈₂₅ overlapped with nTG₄₂₄ and nTG₆₈₉ from base 709-939 (relative to SEQ ID NO:343).

The primers for the second PCR amplification step were: a) an oligonucleotide primer specific for nTG₄₂₄, having the sequence ²²⁵AGAAGCGCCTTTGCGTTTCTACGT²⁰², herein referred to as SEQ ID NO:360; and b) Tp277. These two primers were used to generate a 225 bp T. gondii DNA fragment, referred to as nTG₂₂₅.nTG₂₂₅ cloned into PCR2.1, and nucleotide sequenced with the TA oligonucleotide primers as above, thereby generating the sequence from nucleotides 1-104 of SEQ ID NO:343. Sequence analysis revealed that nTG₂₂₅ overlapped with previously isolated nTG₈₂₅ DNA sequence from base105-225, relative to SEQ ID NO:343.

The contiguous cDNA sequence of the overlapping fragments representing nTG₁₃₉₇ was determined (and referred to herein as SEQ ID NO:343), and sequence analysis of the composite molecule revealed an 867 bp coding region (referred to as nTG₈₆₇), assuming an initiation codon at position 238-240, and a stop codon at position 1102-1104 (relative to SEQ ID NO: 343). The coding strand of nTG₈₆₇ is herein referred to as SEQ ID NO:340, and the reverse complement is herein referred to as SEQ ID NO:342. Translation of the coding region of nTG₈₆₇ yields a 288 amino acid protein herein referred to as PTg₂₈₈, the amino acid sequence of which is herein referred to as SEQ ID NO:341.

To confirm the DNA sequence in the predicted coding region of nTG₁₃₉₇, a PCR amplified fragment containing nucleotides 238 to 1271 was generated using an oligonucleotide primer having the sequence, AAGGATAGGCGGCCGCAGGTACC ²³⁸ATGGCAGGAAGGCAGGCGGCGTT²⁶⁰, herein referred to as SEQ ID NO:362, and an oligonucleotide primer having the sequence, ACCGCTCGAGAAGCTT ¹²⁷¹GAAGCCAAGACATCCCTTCGTGCA¹²⁴⁸, herein referred to as SEQ ID NO:363. The nucleotides in italics represent non-nTG₁₃₉₇ nucleotide sequence, and were present to attach convenient restriction sites to the PCR product. The resulting PCR fragment was cloned into a eukaryotic expression vector, referred to as pDVacIII, and sequenced using two vector-specific oligonucleotide primers: a) Tp244, having the sequence, GGATGCAATGAAGAGAGGGCTC, and herein referred to as SEQ ID NO:352; and b) Tp245, having the sequence, AACTAGAAGGCACAGTCGAGGCTG, and herein referred to as SEQ ID NO:353. The PCR fragment thus generated contained two nucleotide differences as compared with the previously determined cDNA sequence of nTG₁₃₉₇. Instead of an “A” at position 643, a “G” residue was found, and in place of a “T” at position 1187, a “C” residue was found. The resulting nucleotide change at position 643 altered the predicted encoded amino acid from an arginine to a glycine residue. The change at position 1187 did not change the predicted amino acid sequence of nTG₁₃₉₇.

Genomic DNA sequence upstream of the gene comprising nTG₁₃₉₇ was determined by generating a 747 bp fragment by PCR amplification of the λ-EMBL-3 Sau3A partial Toxoplasma genomic library herein described. The primers used were SEQ ID NO:360 (representing nucleotides 202-225 in nTGI₃₉₇) and a λ-EMBL-3-specific primer having the sequence, GGTTCTCTCCAGAGGTTCATTAC, and herein referred to as SEQ ID NO:351. The resulting DNA fragment was cloned in PCR2.1 and sequenced with TA oligonucleotide primers (SEQ ID NO:349, and SEQ ID NO:350) and two gene specific oligonucleotide primers, Tp310 (³⁶⁵CGGACGTTGCATGTCAGTGGACA³⁴³, herein referred to as SEQ ID NO:355) and Tp311 (²⁴³CACGAAGCTGCATGTTCCAGCTAG²⁶⁵, herein referred to as SEQ ID NO:356). The sequence of the PCR fragment revealed a 647 bp DNA fragment, nTG₆₄₇, (herein referred to as SEQ ID NO:338, the reverse complement is herein referred to as SEQ ID NO:339) including 421 nucleotides of new genomic DNA sequence upstream of the 5′ end of the cDNA sequence of Tg₁₃₉₇. The fragment contained 327 bp of genomic DNA sequence that overlapped with the cDNA sequence, SEQ ID NO:343 (in other words, bases 422-647 of the genomic DNA sequence, SEQ ID NO:338, overlap with bases 1-225 of the cDNA sequence, SEQ ID NO:343). There was a single nucleotide difference between the genomic and the cDNA sequences at position 118 of the cDNA sequence (SEQ ID NO:343), where there is a “G” in the genomic DNA sequence and an “A” at the equivalent position in the cDNA sequence.

SEQ ID NO:343 was shown to be T. gondii specific by PCR amplification analysis of various DNAs, using nTG₁₃₉₇-specific DNA primers to drive the reaction. The following cDNA samples were tested for the presence of nTG₁₃₉₇ DNA: a) uninfected cat gut (UCG), b) infected cat gut (ICG), c) T. gondii tachyzoite (TgTz), and d) Toxoplasma bradyzoite (TgBz). To generate UCG and ICG RNA, gut tissue samples from an uninfected cat and a cat 7 days post infection with T. gondii tissue cysts (1000 cysts) were processed by scraping and collecting the epithelial layer of gut cells on dry ice. Cells from UCG, ICG, and T. gondii tachyzoites and bradyzoites were solubilized by homogenization in TRI-reagent (available from Molecular Research Center Inc., Cincinnati, Ohio), and the homogenate passed through a 18/20/and 22 gauge needle 10 times each sequentially. After standing at room temperature for 5 min., 100 ul of bromochloropropane (available from Molecular Research Center Inc.)/ml of TRI reagent was added, and the homogenate vortexed for 15 seconds. The sample was centrifuged at 14,000 rpm for 15 min. at 4° C., the aqueous layer collected, and RNA precipitated with one half volume of isopropanol. Contaminating genomic DNA was removed by digestion with 10 units of RNase free DNaseI (available from Boehringer Mannheim Corp.) at 37° C. for 30 min. The sample was then extracted with phenol/chloroform/isoamylalcohol, pH 6.0. The RNA was precipitated from the aqueous layer with ethanol and resuspended in diethylpyrocarbonate (available from Sigma) treated water. cDNA was generated from total RNA using a commercially available RT-PCR kit (available from Stratagene).

Two nTG₁₃₉₇-specific oligonucleotide primers were used in the reaction: SEQ ID NO:358, having the sequence, ⁷⁰⁹ACAACGACCACGACATCAACTAC⁷³¹, and SEQ ID NO:357, having the sequence, ¹¹¹⁴ACACTTTGGTCTAATCGAGGGTAG¹⁰⁹¹. The reaction conditions were: 95° C. 12 min., followed by 3 cycles of 94° C. 30 sec., 70° C. 30 sec., 72° C. 60 sec., 3 cycles of 94° C. 30 sec., 67° C. 30 sec., 72° C. 60 sec., 3 cycles of 94° C. 30 sec., 65° C. 30 sec., 72° C. 60 sec., 6 cycles of 94° C. 30 sec., 63° C. 30 sec., 72° C. 60 sec., 25 cycles of 94° C. 30 sec., 59° C. 30 sec., 72° C. 60 sec., and a seven minute extension at 75° C. to complete the reaction. The amount of template used in each PCR reaction (˜3-30 ng of DNA), was empirically determined by comparison with a PCR amplified Toxoplasma tubulin gene product standard generated with each template. The PCR amplification reaction generated a 406 bp product only in the reactions containing tachyzoite and ICG cDNA template DNA, thereby confirming the T. gondii-specificity of SEQ ID NO:343.

Sequence Analysis

Homology searches of a non-redundant protein database were performed on SEQ ID NO:340 (representing the coding region of nTG₁₃₉₇, translated in frame 1, using the BLASTP program available through the BLAST™ network of the National Center for Biotechnology Information (NCBI) (National Library of Medicine, National Institute of Health, Baltimore, Md.). This database searched was PIR. In addition, a BLASTP homology search was performed on SEQ ID NO:341 (representing the amino acid sequence encoded by SEQ ID NO:340) using the NCBI database SwissProt. In all cases, the default parameters for the homology programs were used. Another homology search was run on SEQ ID NO:343 using the BLASTN search program and the database genembl.

When run against the PIR database, the highest scoring match of the homology search of translation products of the nucleic acid sequence SEQ ID NO:340 (the coding strand of the coding sequence) was to GenBank™ accession number A60095, a Drosophila larval glue protein precursor. Other significant homologies included homology to an African clawed frog mucin, and a promastigote surface antigen-2. When analyzed by the GCG program, using BESTFIT and default parameters, amino acid residues 145 to 281 of the protein encoded by SEQ ID NO:340 showed about 70% identity to amino acid residues 42 to 178 of the protein represented by GenBank™ accession number A60095. In addition, amino acid residues 153 to 282 of the protein encoded by SEQ ID NO:340 showed about 73% identity to amino acid residues 394 to 523 of the protein represented by GenBank™ accession number A45155 (African clawed frog mucin). When compared with the SwissProt database, the highest scoring match of the homology search of the amino acid sequence SEQ ID NO:341 (the protein encoded by SEQ ID NO:340) was to GenBank™ accession number Q05049, the African clawed frog mucin. These two amino acid sequences showed a 73% identity from amino acid 153 to 282 of SEQ ID NO:341 and amino acid 394 10 523 of the amino acid sequence represented by GenBank™ accession number Q05049. A comparison of SEQ ID NO:343 (the cDNA coding strand) using the BLASTN search program and the database genembl revealed a 76% nucleic acid sequence identity to a D. discoideum protein kinase, GenBank™ accession number M38703. This identity was between nt 765 to 1058 of SEQ ID NO:343 and nt 772 to 1065 of the sequence represented by GenBank™ accession number M38703. In addition, a BLASTN comparison SEQ ID NO:343 with the non-redundant GenBank™ database including GenBank EMBL+DDBJ+PDB revealed an 89% identity between nucleic acid residues 779 to 902 of SEQ ID NO:343 and nt 2150 to nt 2273 of the nucleic acid sequence represented by GenBank™ accession number DDDU86962.

Example 17

This example describes the induction of humoral and cellular responses in cats by proteins expressed by the T. gondii nucleic acid molecules of the present invention. Protein immunization with T. gondii recombinant protein and several different adjuvants induced both antibodies and T cell proliferative responses in cats. DNA immunization of cats with plasmid constructs expressing T. gondii immunogenic proteins of the present invention also induced antibody responses.

Protein Immunization

Protein immunization of cats was carried out with three primary subcutaneous immunizations at intervals of four weeks (prime at week 0 and boosts at weeks 4 and 8) using 50 μg protein per injection in adjuvant. The primary antigen was OC-22, which was purified as a HIS fusion protein from E. coli. The experimental groups were as follows: two cats were immunized with OC-22 protein in alum, two cats were immunized with OC-22 protein in polyphosphazine (PCPP), and two cats were immunized with OC-22 protein in BAYER1005 (Stunkel, K. G., et al., in Cellular Basis of Immune Modulation, 1989, pp. 575-579, incorporated herein by reference in its entirety). One cat was injected with two different antigens in BAYER1005:50 ug of OC-22 and 12 ug of protein 4499-9. One control cat was injected with saline.

Whole blood was collected from all of the animals at intervals before and after the immunizations. Mononuclear cells were selected from the blood for T cell proliferation analysis (see blow) and the remaining plasma processed for detection of humoral responses. The presence of antibody was determined by western blot analysis and by ELISA using recombinant purified antigens. The western blot analysis was more sensitive at detecting a positive or negative response, while the ELISA provided a more quantitative comparison of the cat's responses to the immunogenic proteins.

Western blot analysis was performed on Recombinant purified OC-22 protein was loaded at 2 μg per lane and blotted to nitrocellulose. Samples were from pre-immune cats and cats at 1, 3, and 5 weeks after immunization. Recombinant purified OC-22 protein was loaded at 2 μg per lane and blotted to nitrocellulose. Analysis of the sera collected at three weeks following the first immunization demonstrated that all seven cats responded positively to OC-22 protein. Both anti-cat IgG and anti-cat IgA were used as secondary antibodies (on separate blots). The westerns showed that OC-22 protein elicited both IgA and IgG responses, although the IgA response was not as strong as the IgG response. The ELISA titers were monitored throughout the immunization regimen. The sera collected at week eight and a half, immediately following the second boost had detectable ELISA titers equal to or greater than 1:10,000 for all seven cats. These analyses did not demonstrate any apparent differences between the cats immunized with different adjuvants. The single cat immunized with 12 ug of 4499-9 protein was not positive to 4499-9 protein by either western blot analysis or ELISA, although the same cat demonstrated immune responses to OC-22 that were comparable to the other cats in the study.

Cellular responses to the recombinant T. gondii OC-22 protein were tested by in vitro proliferation of isolated peripheral blood mononuclear cells (PBMC) to purified protein at concentrations ranging from 0.5 to 8 μg /ml. At higher concentrations of protein, non-specific stimulation was evident, making interpretation difficult, but at lower concentrations of antigen, distinct differences were seen between cats. One week after the first boost, T cells from all of the cats in either the PCPP or BAY R1005 adjuvant groups demonstrated stimulation indices (SI) greater than 3. Cells from the PBS control and two alum group cats did not show any proliferative responses. Peak proliferative responses were seen one week after each boost, with the highest responses observed after the first boost. The cats immunized with protein in PCPP had the highest responses, followed by the cats immunized with protein in BAY R1005. The responses observed at 0.5 μg antigen per ml were lower than the responses observed at higher doses, but correlated well with the results observed at 2 ug/ml (data not shown). All of the immunized cats responded to antigen, at some point during the experiment, with an SI level above 3.

DNA Immunization

Cats were immunized with the recombinant eukaryotic expression vector, pDVac II, encoding T. gondii nucleic acid molecules encoding the immunogenic proteins OC-2, OC-22, and Tg-50. The pDVacII vector contains the CMV promoter and intron A sequences. The protein expressed by this vector includes the T. gondii antigen of interest, fused at the 5 prime end to the tissue plasminogen activator signal sequence and fused at the three prime end with both a stretch of poly histidines and an amino acid epitope from the mammalian myc gene. Fifteen cats were divided into four experimental groups: three cats received saline (cats 1, 8, and 16), four cats received DNA encoding OC-2 (cats 2, 5, 9, and 15), four cats received DNA encoding OC-22 (cats 3, 6, 10, and 12), and four cats received a combination of DNA encoding OC-2, OC-22, and Tg-50 (cats 4, 7, 13, and 14). Each cat was injected intramuscularly with a total 300 ug of DNA at two sites per immunization. The combined formulation included 300 ug of each plasmid per injection. The cats were given one injection and then at eight weeks received a boost.

The serum samples collected at six weeks after the primary immunization were analyzed. Two out of eight cats immunized with OC-2 DNA were shown to sero convert to antibody positive to OC-2 protein by western blot analysis. None of the sera collected at this time from the cats immunized with OC-22 or Tg-50 DNA were positive by western blot analysis to OC-22 or Tg-50 protein respectively. When sera collected one week following the boost (week 9) were analyzed by western blots, seven of eight cats immunized with OC-2 were positive to OC-2, six of eight cats immunized with OC-22 were positive to OC-22, and one of four cats immunized with Tg-50 were positive to Tg-50. Similar to the western blot analysis for the protein immunogenicity study described above, faint IgA responses from all of the OC-22 sero-positive animals could be observed. ELISA analysis of sera taken one week after the boost indicated that four out of eight cats immunized with OC-2 and four of eight cats immunized with OC-22 had midpoint titers greater then 1:1000.

The T cell analysis demonstrated positive proliferative responses to several antigens, however the data were difficult to interpret. Cells isolated from two cats immunized with the OC-22 gene and one cat immunized with the OC-2 gene each demonstrated significant SI responses. However, the same cells from each of these cats were also stimulated by the other recombinant antigen; i.e. cells from OC-22-injected cats responded to OC-2 protein and cells from OC-2-injected cats responded to OC-22 protein. Sera from these animals did not react with the poly histidine or myc fusions on other control fusion proteins. This inability to demonstrate strong proliferative responses in PBMC is consistent with other results observed while exploring the induction of proliferative responses in T cells from DNA immunized cats. Cat peripheral blood is a poor source of responsive T cells.

Analysis of Oocvst Shedding in Protein an DNA immunized cats

Analysis of oocysts shed following tissue cyst challenge of cats in both the protein and DNA immunogenicity studies showed no significant difference in oocyst shedding between any of the test groups and the control within each study. However, the number of animals in these studies varied between two and four per group, and thus this result is statistically meaningless. However, significant reduction, i.e., greater than several logs of total oocysts, was not observed in this experiment.

Example 18

This example describes immunization of cats with nucleic acid molecules encoding immunogenic T. gondii proteins, and subsequent challenge of the immunized cats.

Immunization Protocol

The following set of conditions were used for the delivery of DNA-coated gold particles to cats: 1.25 ug of DNA was delivered per shot by Gene Gun (available from Biorad). 1.6 micron gold particles were used in the presence of 0.05 mg/ml PVP (polyvinyl pyrrolidine, 360 kD). The micro-carrier loading quantity was 0.5 mg DNA/cartridge, while the DNA loading ratio was 2.5 ug DNA/mg gold. The animals were anesthetized and shaved at the points of contact with the gun. A total of six shots were delivered to the animal for each immunization: three shots to the inner thigh at 300 psi and three shots to the lower side of the abdomen at 600 psi. The immunization regimen consisted of one prime and two boosts at six week intervals. Tissue cyst challenge was performed two weeks following the second boost. The challenge was with 1000 mouse brain-derived tissue cysts.

The plasmid containing the human growth hormone (hGH) gene was used in the control groups and as a marker in the other groups in all studies. In most control groups, the hGH plasmid was diluted to a concentration similar to that in the test groups. Humoral immune responses to the gene product were measured with an ELISA assay, and cellular responses were measured using hGH protein.

First immunogenicity study: The first immunization was followed by a challenge of 1000 mouse brain derived tissue cysts fourteen weeks later. Sample collection was terminated three weeks after that. There were four groups of five animals per group, as follows: Group 1: Control, hGH (0.125 ug/shot), pDVacIII (1.125 ug/shot) This group received one prime and two boosts, at 0, 6 and 12 weeks, respectively. Group 2: OC-22 in pDVacIII (1.25 ug/shot). This group received one prime and two boosts, at 0, 6 and 12 weeks, respectively. Group 3: hGH (0.125 ug/shot), 9 Toxoplasma nucleic acid molecules OC-2, OC-22, OC-13, OC-14, Tg-41, Tg-45, Tg-50, 4604-3, and 4CQA11 (0.125 ug/shot). This group received one prime and two boosts, at 0, 6 and 12 weeks, respectively. Group 4:hGH (0.125 ug/shot), the same DNA as in Group 3 (9 Toxoplasma nucleic acid molecules), but this group received one prime and one boost, at 6 and 12 weeks, respectively. ELISA analysis for hGH sero conversion using sera collected throughout the study demonstrated that five of five cats in Group 1 were positive (i.e., demonstrated an end point titer>1,000). Three of five animals in Group 3 were sero-positive to hGH. ELISA analysis for sero conversion to OC-22 protein using sera from Group 2 and Group 3 indicated that three of five and zero of five cats were positive respectively. These data suggest that competition from the other plasmids reduced the rate of sero conversion to an individual plasmid. In all cases positive titers did not occur until after the first boost. Specific-T cell proliferative responses using PBMC from animals in each group were not observed. Using the B1 gene-based PCR ELISA herein described, the average number of oocysts shed for each group was: Group 1, 1.03e8; Group 2, 1.11e8; Group 3, 5.79e7 and Group 4, 8.83e7. Statistical analysis of the data indicated no significant difference between the test groups and the control.

Second immunogenicity study

The first immunization for this study was followed by a challenge of 1000 mouse brain derived tissue cysts fourteen weeks later. Sample collection was terrninated three weeks after that. There were four groups of five animals per group, and all animals received one prime and two boosts. Group 2 consisted of DNA representing 18 nucleic acid molecules of the present invention. Group 3 represent 14 additional nucleic acid molecules of the present invention. Group 4 was a combination of both of these groups. The specific nucleic acid molecules and concentrations used in the immunizations were as follows: Group 1: Control, hGH (0.083 ug/shot), pDVacIII (1.125 ug/shot). Group 2:hGH (0.070 ug/shot), 18 Toxoplasma nucleic acid molecules (BZ1-2, 4604-2, 4604-62, 4CQA27, 4CQA29, 4CQA21, 4CQA27, 4604-62, Q2-4, R8050-6,Tg5O, M2A1, M2A5, M2A7, M2A11, M2A19, M2A22, M2A29) (0.070 ug/shot). Group 3:hGH(0.083 ug/shot), 14 Toxoplasma nucleic acid molecules (M2A3, M2A21, M2A18, M2A20, M2A24, M2A6, Q2-9, Q2-10, Q2-11, 4604-63, 4604-17, 4604-69, 4604-54, 4CQA19) (0.083 ug/shot). Group 4:hGH (0.040 ug/shot), 32 Toxoplasma nucleic acid molecules (BZ1-2, 4604-2, 4604-62, 4CQA27, 4CQA29, 4CQA21, 4CQA27, 4604-62, Q2-4, R8050-6,Tg-50, M2A1, M2A5, M2A7, M2Al1, M2Al9, M2A22, M2A29,M2A3, M2A21, M2A18, M2A20, M2A24, M2A6, Q2-9, Q2-10, Q2-11, 4604-63, 4604-17, 4604-69, 4604-54, 4CQAl9) (0.040 ug/shot).

The ELISA analysis of antibody to hGH protein demonstrated that two of five, three of five, zero of five, and two of five animals seroconverted in Groups 1, 2, 3, and 4 respectively. Using low amounts of hGHplasmid in the presence of eighteen or thirty-two additional plasmids containing nucleic acid molecules of the present invention still induced sero conversion in several animals per group. This observation suggests that there is not a strict reduction in the production of antibodies when a gene is injected with several other constructs.

While various embodiments of the present invention have been described in detail, it is apparent that modifications and adaptations of those embodiments will occur to those skilled in the art. It is to be expressly understood, however, that such modifications and adaptations are within the scope of the present invention, as set forth in the following claims.

366 1 357 DNA Toxoplasma gondii CDS (1)..(357) 1 cgc ttc ttg tgt cac ctg cgg cga cgg ggg gac tct cag cag ggc tcg 48 Arg Phe Leu Cys His Leu Arg Arg Arg Gly Asp Ser Gln Gln Gly Ser 1 5 10 15 tgg att cca agc ggc tct gtt ctt ctc tct tct tcg ccg gcg cat tcc 96 Trp Ile Pro Ser Gly Ser Val Leu Leu Ser Ser Ser Pro Ala His Ser 20 25 30 gcc ggt cct cgg aat act cga acg tct cga gtt gcg cgc gtt ggc ctg 144 Ala Gly Pro Arg Asn Thr Arg Thr Ser Arg Val Ala Arg Val Gly Leu 35 40 45 gaa gcc ggg cct gcg aaa ggc gag aca gaa agc aga cga agc aga cag 192 Glu Ala Gly Pro Ala Lys Gly Glu Thr Glu Ser Arg Arg Ser Arg Gln 50 55 60 gac gaa ggg agc gac gtc cgt ggg cgc ttt ttt cga ggc aga caa acc 240 Asp Glu Gly Ser Asp Val Arg Gly Arg Phe Phe Arg Gly Arg Gln Thr 65 70 75 80 gga gac tct cgc atc cac atg ggg gtc tac gag ggt cac gat ggc aac 288 Gly Asp Ser Arg Ile His Met Gly Val Tyr Glu Gly His Asp Gly Asn 85 90 95 gag ttc ggc gaa gag aga gaa caa ggt gca tgc gat ttt tcc gca tct 336 Glu Phe Gly Glu Glu Arg Glu Gln Gly Ala Cys Asp Phe Ser Ala Ser 100 105 110 cct cgc tcg gaa ggc gga tcg 357 Pro Arg Ser Glu Gly Gly Ser 115 2 119 PRT Toxoplasma gondii 2 Arg Phe Leu Cys His Leu Arg Arg Arg Gly Asp Ser Gln Gln Gly Ser 1 5 10 15 Trp Ile Pro Ser Gly Ser Val Leu Leu Ser Ser Ser Pro Ala His Ser 20 25 30 Ala Gly Pro Arg Asn Thr Arg Thr Ser Arg Val Ala Arg Val Gly Leu 35 40 45 Glu Ala Gly Pro Ala Lys Gly Glu Thr Glu Ser Arg Arg Ser Arg Gln 50 55 60 Asp Glu Gly Ser Asp Val Arg Gly Arg Phe Phe Arg Gly Arg Gln Thr 65 70 75 80 Gly Asp Ser Arg Ile His Met Gly Val Tyr Glu Gly His Asp Gly Asn 85 90 95 Glu Phe Gly Glu Glu Arg Glu Gln Gly Ala Cys Asp Phe Ser Ala Ser 100 105 110 Pro Arg Ser Glu Gly Gly Ser 115 3 339 DNA Toxoplasma gondii CDS (1)..(324) 3 cga gga gac ggt ggg agc gca ctg gcc cga ggc gcg gca ctg gga ctt 48 Arg Gly Asp Gly Gly Ser Ala Leu Ala Arg Gly Ala Ala Leu Gly Leu 1 5 10 15 ggg ggc gcg aca gcc gcc gaa aca gct gct gcg cga ata gct gct ctc 96 Gly Gly Ala Thr Ala Ala Glu Thr Ala Ala Ala Arg Ile Ala Ala Leu 20 25 30 aaa cca tcg ctc ttc gcg gcc tcc gaa ctc cct ccc gat gag aca gca 144 Lys Pro Ser Leu Phe Ala Ala Ser Glu Leu Pro Pro Asp Glu Thr Ala 35 40 45 gac agt gga gac aca ggg ccg ttc cgg cga gac cgg gac ttc ttc gcc 192 Asp Ser Gly Asp Thr Gly Pro Phe Arg Arg Asp Arg Asp Phe Phe Ala 50 55 60 ggc acc gcg ggc gaa cac gat gcg tcg gcg atg cga gac aaa gag gcc 240 Gly Thr Ala Gly Glu His Asp Ala Ser Ala Met Arg Asp Lys Glu Ala 65 70 75 80 gca ggc tcc tca ggc gaa gag aca ccc gca gag atc ggc atc ttg ggc 288 Ala Gly Ser Ser Gly Glu Glu Thr Pro Ala Glu Ile Gly Ile Leu Gly 85 90 95 agc cgc gga aac agt tgg ccg gga gac caa ggc tgc tgaagcgtcg ctcgc 339 Ser Arg Gly Asn Ser Trp Pro Gly Asp Gln Gly Cys 100 105 4 108 PRT Toxoplasma gondii 4 Arg Gly Asp Gly Gly Ser Ala Leu Ala Arg Gly Ala Ala Leu Gly Leu 1 5 10 15 Gly Gly Ala Thr Ala Ala Glu Thr Ala Ala Ala Arg Ile Ala Ala Leu 20 25 30 Lys Pro Ser Leu Phe Ala Ala Ser Glu Leu Pro Pro Asp Glu Thr Ala 35 40 45 Asp Ser Gly Asp Thr Gly Pro Phe Arg Arg Asp Arg Asp Phe Phe Ala 50 55 60 Gly Thr Ala Gly Glu His Asp Ala Ser Ala Met Arg Asp Lys Glu Ala 65 70 75 80 Ala Gly Ser Ser Gly Glu Glu Thr Pro Ala Glu Ile Gly Ile Leu Gly 85 90 95 Ser Arg Gly Asn Ser Trp Pro Gly Asp Gln Gly Cys 100 105 5 526 DNA Toxoplasma gondii CDS (1)..(525) 5 cgg aca aaa aag ttt tcc tac gct ccg aac gga gcg gat tct aac aac 48 Arg Thr Lys Lys Phe Ser Tyr Ala Pro Asn Gly Ala Asp Ser Asn Asn 1 5 10 15 tcc tct ctt ccg cac ttt cca tct gtg ttt cca gcg agc gcc gta gtc 96 Ser Ser Leu Pro His Phe Pro Ser Val Phe Pro Ala Ser Ala Val Val 20 25 30 tcc ccc atc gac gaa aac cct gca gag atg gaa agc acc atc tcc gag 144 Ser Pro Ile Asp Glu Asn Pro Ala Glu Met Glu Ser Thr Ile Ser Glu 35 40 45 ggc gaa gca ggt tct gcg gtg gcg gct cct gaa caa ggt atc cag cca 192 Gly Glu Ala Gly Ser Ala Val Ala Ala Pro Glu Gln Gly Ile Gln Pro 50 55 60 gag gca gaa ttt gct acc gcc agc gaa gaa cca cgt ccc ctg gaa cct 240 Glu Ala Glu Phe Ala Thr Ala Ser Glu Glu Pro Arg Pro Leu Glu Pro 65 70 75 80 gtc gac ccc gaa atg gca gct cag cag ccg caa ctg cct caa gaa gct 288 Val Asp Pro Glu Met Ala Ala Gln Gln Pro Gln Leu Pro Gln Glu Ala 85 90 95 atg cca act gag aat gcg gac ctt ctt gga aac cag ccc aga atg cgc 336 Met Pro Thr Glu Asn Ala Asp Leu Leu Gly Asn Gln Pro Arg Met Arg 100 105 110 aat gct ctc gaa ccc tct gcc aag gtc ctc gaa ccg gaa acc ctg gaa 384 Asn Ala Leu Glu Pro Ser Ala Lys Val Leu Glu Pro Glu Thr Leu Glu 115 120 125 ggg tca cct gct ctc gtc ccg ccg gca gag act gaa gag ggg aca gcc 432 Gly Ser Pro Ala Leu Val Pro Pro Ala Glu Thr Glu Glu Gly Thr Ala 130 135 140 gcc caa att gcg gag gaa atg agc aag cag gat cag ggc atg cag gaa 480 Ala Gln Ile Ala Glu Glu Met Ser Lys Gln Asp Gln Gly Met Gln Glu 145 150 155 160 gcc agg cct caa gaa gtt ctc agt aag caa tgg gtt ctt cga tat t 526 Ala Arg Pro Gln Glu Val Leu Ser Lys Gln Trp Val Leu Arg Tyr 165 170 175 6 175 PRT Toxoplasma gondii 6 Arg Thr Lys Lys Phe Ser Tyr Ala Pro Asn Gly Ala Asp Ser Asn Asn 1 5 10 15 Ser Ser Leu Pro His Phe Pro Ser Val Phe Pro Ala Ser Ala Val Val 20 25 30 Ser Pro Ile Asp Glu Asn Pro Ala Glu Met Glu Ser Thr Ile Ser Glu 35 40 45 Gly Glu Ala Gly Ser Ala Val Ala Ala Pro Glu Gln Gly Ile Gln Pro 50 55 60 Glu Ala Glu Phe Ala Thr Ala Ser Glu Glu Pro Arg Pro Leu Glu Pro 65 70 75 80 Val Asp Pro Glu Met Ala Ala Gln Gln Pro Gln Leu Pro Gln Glu Ala 85 90 95 Met Pro Thr Glu Asn Ala Asp Leu Leu Gly Asn Gln Pro Arg Met Arg 100 105 110 Asn Ala Leu Glu Pro Ser Ala Lys Val Leu Glu Pro Glu Thr Leu Glu 115 120 125 Gly Ser Pro Ala Leu Val Pro Pro Ala Glu Thr Glu Glu Gly Thr Ala 130 135 140 Ala Gln Ile Ala Glu Glu Met Ser Lys Gln Asp Gln Gly Met Gln Glu 145 150 155 160 Ala Arg Pro Gln Glu Val Leu Ser Lys Gln Trp Val Leu Arg Tyr 165 170 175 7 1478 DNA Toxoplasma gondii CDS (19)..(1161) 7 gaggacgcag acgtgagt atg ctc cag agg gat cac gga atc cac gga gag 51 Met Leu Gln Arg Asp His Gly Ile His Gly Glu 1 5 10 gaa gcc ggt ttg ttc cgc aag gct gtt ccg ggc ttg gac gac cca gct 99 Glu Ala Gly Leu Phe Arg Lys Ala Val Pro Gly Leu Asp Asp Pro Ala 15 20 25 gaa gac gat gaa gcc gac ggc gaa agt gcc tcg gat gag gca gaa gcc 147 Glu Asp Asp Glu Ala Asp Gly Glu Ser Ala Ser Asp Glu Ala Glu Ala 30 35 40 gac tct gac gtc ttg gcg gac gac gaa gaa ggg aca tcc ctc atc gaa 195 Asp Ser Asp Val Leu Ala Asp Asp Glu Glu Gly Thr Ser Leu Ile Glu 45 50 55 aat gcg agt gag gaa gac aca gac aac tcc gag gca gac agt caa cag 243 Asn Ala Ser Glu Glu Asp Thr Asp Asn Ser Glu Ala Asp Ser Gln Gln 60 65 70 75 gag gat gac agt gtg gga gag gat tcc ttt ctc cag cag gag ggc gag 291 Glu Asp Asp Ser Val Gly Glu Asp Ser Phe Leu Gln Gln Glu Gly Glu 80 85 90 gac tcc gag gaa gaa aga gca gtc gag gac ccg tat gct gcc gcc gaa 339 Asp Ser Glu Glu Glu Arg Ala Val Glu Asp Pro Tyr Ala Ala Ala Glu 95 100 105 ccc tct tat ctt gaa gag gac aac act gtt gac gac agc gcg gcg gag 387 Pro Ser Tyr Leu Glu Glu Asp Asn Thr Val Asp Asp Ser Ala Ala Glu 110 115 120 gat tat gcc cct gct tcg ttt gtc cag atc ggc agt gga gag aga aaa 435 Asp Tyr Ala Pro Ala Ser Phe Val Gln Ile Gly Ser Gly Glu Arg Lys 125 130 135 atc cgg gcg cac atg cat ctt gac agc cgc caa gtt gcc ccc gaa aga 483 Ile Arg Ala His Met His Leu Asp Ser Arg Gln Val Ala Pro Glu Arg 140 145 150 155 ttc gcg cat gcg ttc aac cag gat cat gtc aga ctt ctg gac cag acc 531 Phe Ala His Ala Phe Asn Gln Asp His Val Arg Leu Leu Asp Gln Thr 160 165 170 gcc gtc gag gac gaa ctt ctc gat gag gcc gcc ccg ggc gga ggc gcg 579 Ala Val Glu Asp Glu Leu Leu Asp Glu Ala Ala Pro Gly Gly Gly Ala 175 180 185 agc gcc gta gtc tcc ccc atc gac gaa aac cct gca gag atg gaa agc 627 Ser Ala Val Val Ser Pro Ile Asp Glu Asn Pro Ala Glu Met Glu Ser 190 195 200 acc atc tcc gag ggc gaa gca ggt tct gcg gtg gcg gct cct gaa caa 675 Thr Ile Ser Glu Gly Glu Ala Gly Ser Ala Val Ala Ala Pro Glu Gln 205 210 215 ggt atc cag cca gag gca gaa ttt gct acc gcc agc gaa gaa cca cgt 723 Gly Ile Gln Pro Glu Ala Glu Phe Ala Thr Ala Ser Glu Glu Pro Arg 220 225 230 235 ccc ctg gaa cct gtc gac ccc gaa atg gca gct cag cag ccg caa ctg 771 Pro Leu Glu Pro Val Asp Pro Glu Met Ala Ala Gln Gln Pro Gln Leu 240 245 250 cct caa gaa gct atg cca act gag aat gcg gac ctt ctt gga aac cag 819 Pro Gln Glu Ala Met Pro Thr Glu Asn Ala Asp Leu Leu Gly Asn Gln 255 260 265 ccc aga atg cgc aat gct ctc gaa ccc tct gcc aag gtc ctc gaa ccg 867 Pro Arg Met Arg Asn Ala Leu Glu Pro Ser Ala Lys Val Leu Glu Pro 270 275 280 gaa acc ctg gaa ggg tca cct gct ctc gtc ccg ccg gca gag act gaa 915 Glu Thr Leu Glu Gly Ser Pro Ala Leu Val Pro Pro Ala Glu Thr Glu 285 290 295 gag ggg aca gcc gcc caa att gcg gag gaa atg agc aag cag gat cag 963 Glu Gly Thr Ala Ala Gln Ile Ala Glu Glu Met Ser Lys Gln Asp Gln 300 305 310 315 ggc atg cag gaa gcc agg cct caa gaa gtt ctc aca cga cac acc tgg 1011 Gly Met Gln Glu Ala Arg Pro Gln Glu Val Leu Thr Arg His Thr Trp 320 325 330 caa gat atg gag aga act gag gac cta cga aag aac gac gtc ccg gct 1059 Gln Asp Met Glu Arg Thr Glu Asp Leu Arg Lys Asn Asp Val Pro Ala 335 340 345 gca gtg gcg aat tcc ggc agc cag atc atc acg gct gcg tcg tcc gtc 1107 Ala Val Ala Asn Ser Gly Ser Gln Ile Ile Thr Ala Ala Ser Ser Val 350 355 360 gcc ctt gct ggt cta ctg gtc gca gga cag ctt ttg ttc agc gtg ggc 1155 Ala Leu Ala Gly Leu Leu Val Ala Gly Gln Leu Leu Phe Ser Val Gly 365 370 375 atg tac tgagaataat attcttgctt cgtggaatat tgttgctacc tgaaagttaa 1211 Met Tyr 380 actattttcg ctgtgaatgt ggggggggtt cgccgactgt gttcccgccc aacattcgtg 1271 gttaatgagt tttgtcccat cgtgcattgc gacgctcaac cacacttcta ttttgggggg 1331 gcatcttagg taatatgcta aggttatttt ctgcgtcgct gaactctggt cttgcaaaag 1391 aagctaactc ttttccggca taacttcgtt tttggtgtca aaaaaaaaaa aaaaaaaaaa 1451 aaaaaaaaaa aaaaaaaaaa aaaaaaa 1478 8 381 PRT Toxoplasma gondii 8 Met Leu Gln Arg Asp His Gly Ile His Gly Glu Glu Ala Gly Leu Phe 1 5 10 15 Arg Lys Ala Val Pro Gly Leu Asp Asp Pro Ala Glu Asp Asp Glu Ala 20 25 30 Asp Gly Glu Ser Ala Ser Asp Glu Ala Glu Ala Asp Ser Asp Val Leu 35 40 45 Ala Asp Asp Glu Glu Gly Thr Ser Leu Ile Glu Asn Ala Ser Glu Glu 50 55 60 Asp Thr Asp Asn Ser Glu Ala Asp Ser Gln Gln Glu Asp Asp Ser Val 65 70 75 80 Gly Glu Asp Ser Phe Leu Gln Gln Glu Gly Glu Asp Ser Glu Glu Glu 85 90 95 Arg Ala Val Glu Asp Pro Tyr Ala Ala Ala Glu Pro Ser Tyr Leu Glu 100 105 110 Glu Asp Asn Thr Val Asp Asp Ser Ala Ala Glu Asp Tyr Ala Pro Ala 115 120 125 Ser Phe Val Gln Ile Gly Ser Gly Glu Arg Lys Ile Arg Ala His Met 130 135 140 His Leu Asp Ser Arg Gln Val Ala Pro Glu Arg Phe Ala His Ala Phe 145 150 155 160 Asn Gln Asp His Val Arg Leu Leu Asp Gln Thr Ala Val Glu Asp Glu 165 170 175 Leu Leu Asp Glu Ala Ala Pro Gly Gly Gly Ala Ser Ala Val Val Ser 180 185 190 Pro Ile Asp Glu Asn Pro Ala Glu Met Glu Ser Thr Ile Ser Glu Gly 195 200 205 Glu Ala Gly Ser Ala Val Ala Ala Pro Glu Gln Gly Ile Gln Pro Glu 210 215 220 Ala Glu Phe Ala Thr Ala Ser Glu Glu Pro Arg Pro Leu Glu Pro Val 225 230 235 240 Asp Pro Glu Met Ala Ala Gln Gln Pro Gln Leu Pro Gln Glu Ala Met 245 250 255 Pro Thr Glu Asn Ala Asp Leu Leu Gly Asn Gln Pro Arg Met Arg Asn 260 265 270 Ala Leu Glu Pro Ser Ala Lys Val Leu Glu Pro Glu Thr Leu Glu Gly 275 280 285 Ser Pro Ala Leu Val Pro Pro Ala Glu Thr Glu Glu Gly Thr Ala Ala 290 295 300 Gln Ile Ala Glu Glu Met Ser Lys Gln Asp Gln Gly Met Gln Glu Ala 305 310 315 320 Arg Pro Gln Glu Val Leu Thr Arg His Thr Trp Gln Asp Met Glu Arg 325 330 335 Thr Glu Asp Leu Arg Lys Asn Asp Val Pro Ala Ala Val Ala Asn Ser 340 345 350 Gly Ser Gln Ile Ile Thr Ala Ala Ser Ser Val Ala Leu Ala Gly Leu 355 360 365 Leu Val Ala Gly Gln Leu Leu Phe Ser Val Gly Met Tyr 370 375 380 9 657 DNA Toxoplasma gondii CDS (1)..(657) 9 gag atg agc gcc cca gat agg caa aca gga aag ctt tcc gat tta ccg 48 Glu Met Ser Ala Pro Asp Arg Gln Thr Gly Lys Leu Ser Asp Leu Pro 1 5 10 15 cca ttt gct gag ctg cca cag ctg gca gaa ata cca aag ctc tcc gaa 96 Pro Phe Ala Glu Leu Pro Gln Leu Ala Glu Ile Pro Lys Leu Ser Glu 20 25 30 ctt ccg aaa atc gcg gac atg ccg aaa ttt tcg gat atg ccc aag atg 144 Leu Pro Lys Ile Ala Asp Met Pro Lys Phe Ser Asp Met Pro Lys Met 35 40 45 gcc gag atg ccc aag tta tca gat ata ccc aag atg gct gag atg ccc 192 Ala Glu Met Pro Lys Leu Ser Asp Ile Pro Lys Met Ala Glu Met Pro 50 55 60 aag tta tca gat ata ccc aag atg gct gag atg ccc aag tta tca gat 240 Lys Leu Ser Asp Ile Pro Lys Met Ala Glu Met Pro Lys Leu Ser Asp 65 70 75 80 ata ccc aag atg gct gag atg ccc aag ttt tca gat ata ccc aag atg 288 Ile Pro Lys Met Ala Glu Met Pro Lys Phe Ser Asp Ile Pro Lys Met 85 90 95 gct gag atg cca aag tta tca gat atg ccc aga atg gct gac att cca 336 Ala Glu Met Pro Lys Leu Ser Asp Met Pro Arg Met Ala Asp Ile Pro 100 105 110 cag ttt cca gag atg cct agg atg gtt gac atg cct cag ttt cca gaa 384 Gln Phe Pro Glu Met Pro Arg Met Val Asp Met Pro Gln Phe Pro Glu 115 120 125 atc ccc agg atg gct gat atg cgg aga ttt ccg gag atg tcc aag ata 432 Ile Pro Arg Met Ala Asp Met Arg Arg Phe Pro Glu Met Ser Lys Ile 130 135 140 gct gac atg cca aag ttt cca gac atg cca aac gtc act gag atg cca 480 Ala Asp Met Pro Lys Phe Pro Asp Met Pro Asn Val Thr Glu Met Pro 145 150 155 160 aag ctt gca gat ttg cca agg ctt gct gac atg ccc agt att gcc gac 528 Lys Leu Ala Asp Leu Pro Arg Leu Ala Asp Met Pro Ser Ile Ala Asp 165 170 175 atg ccc cgg ctc tca gac atg ccc agt att gca gac atg ccc cgg ctc 576 Met Pro Arg Leu Ser Asp Met Pro Ser Ile Ala Asp Met Pro Arg Leu 180 185 190 tca gac ata ccc agt att gcc gac atg ccc cgg ctc tca gac atg ccc 624 Ser Asp Ile Pro Ser Ile Ala Asp Met Pro Arg Leu Ser Asp Met Pro 195 200 205 agt att gcc gac atg ccg aaa ttc tct agc cgg 657 Ser Ile Ala Asp Met Pro Lys Phe Ser Ser Arg 210 215 10 219 PRT Toxoplasma gondii 10 Glu Met Ser Ala Pro Asp Arg Gln Thr Gly Lys Leu Ser Asp Leu Pro 1 5 10 15 Pro Phe Ala Glu Leu Pro Gln Leu Ala Glu Ile Pro Lys Leu Ser Glu 20 25 30 Leu Pro Lys Ile Ala Asp Met Pro Lys Phe Ser Asp Met Pro Lys Met 35 40 45 Ala Glu Met Pro Lys Leu Ser Asp Ile Pro Lys Met Ala Glu Met Pro 50 55 60 Lys Leu Ser Asp Ile Pro Lys Met Ala Glu Met Pro Lys Leu Ser Asp 65 70 75 80 Ile Pro Lys Met Ala Glu Met Pro Lys Phe Ser Asp Ile Pro Lys Met 85 90 95 Ala Glu Met Pro Lys Leu Ser Asp Met Pro Arg Met Ala Asp Ile Pro 100 105 110 Gln Phe Pro Glu Met Pro Arg Met Val Asp Met Pro Gln Phe Pro Glu 115 120 125 Ile Pro Arg Met Ala Asp Met Arg Arg Phe Pro Glu Met Ser Lys Ile 130 135 140 Ala Asp Met Pro Lys Phe Pro Asp Met Pro Asn Val Thr Glu Met Pro 145 150 155 160 Lys Leu Ala Asp Leu Pro Arg Leu Ala Asp Met Pro Ser Ile Ala Asp 165 170 175 Met Pro Arg Leu Ser Asp Met Pro Ser Ile Ala Asp Met Pro Arg Leu 180 185 190 Ser Asp Ile Pro Ser Ile Ala Asp Met Pro Arg Leu Ser Asp Met Pro 195 200 205 Ser Ile Ala Asp Met Pro Lys Phe Ser Ser Arg 210 215 11 1029 DNA Toxoplasma gondii CDS (1)..(819) 11 gag atg agc gcc cca gat agg caa aca gga aag ctt tcc gat tta ccg 48 Glu Met Ser Ala Pro Asp Arg Gln Thr Gly Lys Leu Ser Asp Leu Pro 1 5 10 15 cca ttt gct gag ctg cca cag ctg gca gaa ata cca aag ctc tcc gaa 96 Pro Phe Ala Glu Leu Pro Gln Leu Ala Glu Ile Pro Lys Leu Ser Glu 20 25 30 ctt ccg aaa atc gcg gac atg ccg aaa ttt tcg gat atg ccc aag atg 144 Leu Pro Lys Ile Ala Asp Met Pro Lys Phe Ser Asp Met Pro Lys Met 35 40 45 gcc gag atg ccc aag tta tca gat ata ccc aag atg gct gag atg ccc 192 Ala Glu Met Pro Lys Leu Ser Asp Ile Pro Lys Met Ala Glu Met Pro 50 55 60 aag tta tca gat ata ccc aag atg gct gag atg ccc aag tta tca gat 240 Lys Leu Ser Asp Ile Pro Lys Met Ala Glu Met Pro Lys Leu Ser Asp 65 70 75 80 ata ccc aag atg gct gag atg ccc aag ttt tca gat ata ccc aag atg 288 Ile Pro Lys Met Ala Glu Met Pro Lys Phe Ser Asp Ile Pro Lys Met 85 90 95 gct gag atg cca aag tta tca gat atg ccc aga atg gct gac att cca 336 Ala Glu Met Pro Lys Leu Ser Asp Met Pro Arg Met Ala Asp Ile Pro 100 105 110 cag ttt cca gag atg cct agg atg gtt gac atg cct cag ttt cca gaa 384 Gln Phe Pro Glu Met Pro Arg Met Val Asp Met Pro Gln Phe Pro Glu 115 120 125 atc ccc agg atg gct gat atg cgg aga ttt ccg gag atg tcc aag ata 432 Ile Pro Arg Met Ala Asp Met Arg Arg Phe Pro Glu Met Ser Lys Ile 130 135 140 gct gac atg cca aag ttt cca gac atg cca aac gtc act gag atg cca 480 Ala Asp Met Pro Lys Phe Pro Asp Met Pro Asn Val Thr Glu Met Pro 145 150 155 160 aag ctt gca gat ttg cca agg ctt gct gac atg ccc agt att gcc gac 528 Lys Leu Ala Asp Leu Pro Arg Leu Ala Asp Met Pro Ser Ile Ala Asp 165 170 175 atg ccc cgg ctc tca gac atg ccc agt att gca gac atg ccc cgg ctc 576 Met Pro Arg Leu Ser Asp Met Pro Ser Ile Ala Asp Met Pro Arg Leu 180 185 190 tca gac ata ccc agt att gcc gac atg ccc cgg ctc tca gac atg ccc 624 Ser Asp Ile Pro Ser Ile Ala Asp Met Pro Arg Leu Ser Asp Met Pro 195 200 205 agt att gcc gac atg ccg aaa ttc tct agt aac cga gtt cat ggg caa 672 Ser Ile Ala Asp Met Pro Lys Phe Ser Ser Asn Arg Val His Gly Gln 210 215 220 agt tac cat att ctg gcg ata tgg aca ccg tcc ctt tcc gga ctc aag 720 Ser Tyr His Ile Leu Ala Ile Trp Thr Pro Ser Leu Ser Gly Leu Lys 225 230 235 240 gag ttt ttt acc ccg ctc tct gac cta atc aag cca gaa gct gct tcc 768 Glu Phe Phe Thr Pro Leu Ser Asp Leu Ile Lys Pro Glu Ala Ala Ser 245 250 255 ctg aca agc ctg gcc aag cca tct gga gtt ttt ctg aga acc ctg ctg 816 Leu Thr Ser Leu Ala Lys Pro Ser Gly Val Phe Leu Arg Thr Leu Leu 260 265 270 gct tgatgagaaa atgtatattg acaaatggct gtatctccat agttatagtg 869 Ala aggaatgtat tgacttattc cgaggactct atactgaacc cgcggcatac gaggaaactg 929 acaagttggt gatgtgcgtt tctgatcttc cccgaaaaga aaaaaaaatg accgtcttaa 989 aaaaaaaaaa aaaaaaaaaa aaaaaaaaaa aaaaaaaaaa 1029 12 273 PRT Toxoplasma gondii 12 Glu Met Ser Ala Pro Asp Arg Gln Thr Gly Lys Leu Ser Asp Leu Pro 1 5 10 15 Pro Phe Ala Glu Leu Pro Gln Leu Ala Glu Ile Pro Lys Leu Ser Glu 20 25 30 Leu Pro Lys Ile Ala Asp Met Pro Lys Phe Ser Asp Met Pro Lys Met 35 40 45 Ala Glu Met Pro Lys Leu Ser Asp Ile Pro Lys Met Ala Glu Met Pro 50 55 60 Lys Leu Ser Asp Ile Pro Lys Met Ala Glu Met Pro Lys Leu Ser Asp 65 70 75 80 Ile Pro Lys Met Ala Glu Met Pro Lys Phe Ser Asp Ile Pro Lys Met 85 90 95 Ala Glu Met Pro Lys Leu Ser Asp Met Pro Arg Met Ala Asp Ile Pro 100 105 110 Gln Phe Pro Glu Met Pro Arg Met Val Asp Met Pro Gln Phe Pro Glu 115 120 125 Ile Pro Arg Met Ala Asp Met Arg Arg Phe Pro Glu Met Ser Lys Ile 130 135 140 Ala Asp Met Pro Lys Phe Pro Asp Met Pro Asn Val Thr Glu Met Pro 145 150 155 160 Lys Leu Ala Asp Leu Pro Arg Leu Ala Asp Met Pro Ser Ile Ala Asp 165 170 175 Met Pro Arg Leu Ser Asp Met Pro Ser Ile Ala Asp Met Pro Arg Leu 180 185 190 Ser Asp Ile Pro Ser Ile Ala Asp Met Pro Arg Leu Ser Asp Met Pro 195 200 205 Ser Ile Ala Asp Met Pro Lys Phe Ser Ser Asn Arg Val His Gly Gln 210 215 220 Ser Tyr His Ile Leu Ala Ile Trp Thr Pro Ser Leu Ser Gly Leu Lys 225 230 235 240 Glu Phe Phe Thr Pro Leu Ser Asp Leu Ile Lys Pro Glu Ala Ala Ser 245 250 255 Leu Thr Ser Leu Ala Lys Pro Ser Gly Val Phe Leu Arg Thr Leu Leu 260 265 270 Ala 13 425 DNA Toxoplasma gondii CDS (1)..(423) 13 cgc gga att ccg gat cag cgt agc agt cgc agc cac act gga gtg gaa 48 Arg Gly Ile Pro Asp Gln Arg Ser Ser Arg Ser His Thr Gly Val Glu 1 5 10 15 agt ctg gtt ttg ccc tcc aga ggg gag gaa gag gcg aga gag gag acg 96 Ser Leu Val Leu Pro Ser Arg Gly Glu Glu Glu Ala Arg Glu Glu Thr 20 25 30 tct gca acg cgc cag atg ccg acg ctt ctc tct tcg ccg agg cct cca 144 Ser Ala Thr Arg Gln Met Pro Thr Leu Leu Ser Ser Pro Arg Pro Pro 35 40 45 ctc gcg ctg ggg ttg gga gac aag tct ccc tgc gga gag tgg gtg tcg 192 Leu Ala Leu Gly Leu Gly Asp Lys Ser Pro Cys Gly Glu Trp Val Ser 50 55 60 ccg aat gac atg gtt tct gcg ttg tcc ctc tgg gaa gca ggc gag gct 240 Pro Asn Asp Met Val Ser Ala Leu Ser Leu Trp Glu Ala Gly Glu Ala 65 70 75 80 tgg cag ttc aag aca gcg aaa att ctt gac tct ttc gaa ggg gag acc 288 Trp Gln Phe Lys Thr Ala Lys Ile Leu Asp Ser Phe Glu Gly Glu Thr 85 90 95 cca gaa ggg gag gga tgc ggc gca cag gaa aga agg aca gcc gca tgc 336 Pro Glu Gly Glu Gly Cys Gly Ala Gln Glu Arg Arg Thr Ala Ala Cys 100 105 110 aag ctg gtg cga ctc ccg gtg aac gtg gag ggg cgg tcg aca aag gtg 384 Lys Leu Val Arg Leu Pro Val Asn Val Glu Gly Arg Ser Thr Lys Val 115 120 125 tgg agc ttg gct ctt ctt tct tct ctg cgt ctg aag atc cg 425 Trp Ser Leu Ala Leu Leu Ser Ser Leu Arg Leu Lys Ile 130 135 140 14 141 PRT Toxoplasma gondii 14 Arg Gly Ile Pro Asp Gln Arg Ser Ser Arg Ser His Thr Gly Val Glu 1 5 10 15 Ser Leu Val Leu Pro Ser Arg Gly Glu Glu Glu Ala Arg Glu Glu Thr 20 25 30 Ser Ala Thr Arg Gln Met Pro Thr Leu Leu Ser Ser Pro Arg Pro Pro 35 40 45 Leu Ala Leu Gly Leu Gly Asp Lys Ser Pro Cys Gly Glu Trp Val Ser 50 55 60 Pro Asn Asp Met Val Ser Ala Leu Ser Leu Trp Glu Ala Gly Glu Ala 65 70 75 80 Trp Gln Phe Lys Thr Ala Lys Ile Leu Asp Ser Phe Glu Gly Glu Thr 85 90 95 Pro Glu Gly Glu Gly Cys Gly Ala Gln Glu Arg Arg Thr Ala Ala Cys 100 105 110 Lys Leu Val Arg Leu Pro Val Asn Val Glu Gly Arg Ser Thr Lys Val 115 120 125 Trp Ser Leu Ala Leu Leu Ser Ser Leu Arg Leu Lys Ile 130 135 140 15 417 DNA Toxoplasma gondii CDS (1)..(417) 15 cgc ggc ctt tcc gat gac gcc tct cac gcg gag acc cct tca ccg ctc 48 Arg Gly Leu Ser Asp Asp Ala Ser His Ala Glu Thr Pro Ser Pro Leu 1 5 10 15 acg ccc tcg agg gtg gac agc ttc tca gac gga gtt gag aga aca cgc 96 Thr Pro Ser Arg Val Asp Ser Phe Ser Asp Gly Val Glu Arg Thr Arg 20 25 30 aga agc tct ccg cga gtc gag gag cac cag acg agc tcg aga gag gaa 144 Arg Ser Ser Pro Arg Val Glu Glu His Gln Thr Ser Ser Arg Glu Glu 35 40 45 aaa gct gcg aca gag cgc gtt cca aaa ctg tct cgt ctc ccc tcg ctc 192 Lys Ala Ala Thr Glu Arg Val Pro Lys Leu Ser Arg Leu Pro Ser Leu 50 55 60 cga gct cct cta cgc agc acg gac cga cgc gcc tcg ccg cct cgt cgg 240 Arg Ala Pro Leu Arg Ser Thr Asp Arg Arg Ala Ser Pro Pro Arg Arg 65 70 75 80 ctg tcg caa ctt ctt cgc tgc tgc aca acc tcg aga ttc gcg agc aaa 288 Leu Ser Gln Leu Leu Arg Cys Cys Thr Thr Ser Arg Phe Ala Ser Lys 85 90 95 gga acg gcg tat cca gac gag gag tgg ggg cat aga gtc cga gca cag 336 Gly Thr Ala Tyr Pro Asp Glu Glu Trp Gly His Arg Val Arg Ala Gln 100 105 110 aga aca gaa gag act gtc tcc tct ctg acg acg aag cgc ctt ctc act 384 Arg Thr Glu Glu Thr Val Ser Ser Leu Thr Thr Lys Arg Leu Leu Thr 115 120 125 cga agt cct aat tcg cag act gcc ttc ccg cgg 417 Arg Ser Pro Asn Ser Gln Thr Ala Phe Pro Arg 130 135 16 139 PRT Toxoplasma gondii 16 Arg Gly Leu Ser Asp Asp Ala Ser His Ala Glu Thr Pro Ser Pro Leu 1 5 10 15 Thr Pro Ser Arg Val Asp Ser Phe Ser Asp Gly Val Glu Arg Thr Arg 20 25 30 Arg Ser Ser Pro Arg Val Glu Glu His Gln Thr Ser Ser Arg Glu Glu 35 40 45 Lys Ala Ala Thr Glu Arg Val Pro Lys Leu Ser Arg Leu Pro Ser Leu 50 55 60 Arg Ala Pro Leu Arg Ser Thr Asp Arg Arg Ala Ser Pro Pro Arg Arg 65 70 75 80 Leu Ser Gln Leu Leu Arg Cys Cys Thr Thr Ser Arg Phe Ala Ser Lys 85 90 95 Gly Thr Ala Tyr Pro Asp Glu Glu Trp Gly His Arg Val Arg Ala Gln 100 105 110 Arg Thr Glu Glu Thr Val Ser Ser Leu Thr Thr Lys Arg Leu Leu Thr 115 120 125 Arg Ser Pro Asn Ser Gln Thr Ala Phe Pro Arg 130 135 17 507 DNA Toxoplasma gondii CDS (1)..(153) 17 ggc agg gga agt gga cga cac ccg tcg ctg agc ttt cgc ctg gag tgg 48 Gly Arg Gly Ser Gly Arg His Pro Ser Leu Ser Phe Arg Leu Glu Trp 1 5 10 15 aga cat cta cct gtg agt gaa cca ggc gtt ctg ctt tcg ccg ctc ctt 96 Arg His Leu Pro Val Ser Glu Pro Gly Val Leu Leu Ser Pro Leu Leu 20 25 30 tgc agg cca gag gac aat gat aca aat ata agt gac act ctt ctc ttc 144 Cys Arg Pro Glu Asp Asn Asp Thr Asn Ile Ser Asp Thr Leu Leu Phe 35 40 45 gat atc ggt taactgacaa agaaccacag cggagttaaa atagcagcgt 193 Asp Ile Gly 50 ttgcagttca acgcatgcac aaactgctta actcccacat gcttgccttt gagagacgcg 253 acagcacatc gttcgagctt gcacgcagcg aagacatcta gacagcaatt aggagatgcc 313 tgccgaattt gtatgtaagg cgcaaacgtc tcctcggtgc gaatcacaat tacgcacatt 373 tgcccggact tacatctgtc ttctactggg gtctttcctt gtcaaaccgt gccgctgcaa 433 ctccaaacta gctcgttagt gagatgctgg caaggttttg acaagaatcg agttctgcga 493 ctgcatcgtg gtcg 507 18 51 PRT Toxoplasma gondii 18 Gly Arg Gly Ser Gly Arg His Pro Ser Leu Ser Phe Arg Leu Glu Trp 1 5 10 15 Arg His Leu Pro Val Ser Glu Pro Gly Val Leu Leu Ser Pro Leu Leu 20 25 30 Cys Arg Pro Glu Asp Asn Asp Thr Asn Ile Ser Asp Thr Leu Leu Phe 35 40 45 Asp Ile Gly 50 19 718 DNA Toxoplasma gondii CDS (1)..(297) 19 gaa ttc cga ctg aat gac tac ctc ttt cag gtg cca gag ggt ccc ccc 48 Glu Phe Arg Leu Asn Asp Tyr Leu Phe Gln Val Pro Glu Gly Pro Pro 1 5 10 15 gcg aga agc cat ggg ttc gac aga aga cga gca gca gcg agc aaa aac 96 Ala Arg Ser His Gly Phe Asp Arg Arg Arg Ala Ala Ala Ser Lys Asn 20 25 30 gca aca gaa gaa acg cgg agg ctg gcg ggc aaa gaa acg ccg ccg cac 144 Ala Thr Glu Glu Thr Arg Arg Leu Ala Gly Lys Glu Thr Pro Pro His 35 40 45 aga gag gcc ccg gaa aag aca acg cga ggc gaa gaa gac aga caa gag 192 Arg Glu Ala Pro Glu Lys Thr Thr Arg Gly Glu Glu Asp Arg Gln Glu 50 55 60 agc gag agg gaa aga agg cga gcc ggc gtg atg gac aaa aag aac cag 240 Ser Glu Arg Glu Arg Arg Arg Ala Gly Val Met Asp Lys Lys Asn Gln 65 70 75 80 gac ctt gac gat gaa acc cgg aga agg ggg acg gcg gag gag gag agg 288 Asp Leu Asp Asp Glu Thr Arg Arg Arg Gly Thr Ala Glu Glu Glu Arg 85 90 95 aat gga gac tgaaaaaagc cgaagatgac aggccagagt aagacgagga 337 Asn Gly Asp ggtgcaggac aaggatgtct cttattcacc gagtctcgtt aaccagcgtt ggtcttatca 397 agaggtgcag gacacagatg agacatccgg ttcgtccaaa gaccagttgg agcactcgag 457 agaggcaaga cagaagctga gggttcgcga cagacatcca gctgcctccg cgggcgttgt 517 tcactgagga cttggtcgga aaggggagag aaacatagaa acgaagaaca ccaagacctg 577 gaagaggtgc agattcctct tgggcactcg caggagacgc cttcgtcagt tttttttgtt 637 cactcaacgg actctgtcgt cacgagggaa ctcagacaga gacctcaagg agacagagga 697 acgcaacgca cgtcggaatt c 718 20 99 PRT Toxoplasma gondii 20 Glu Phe Arg Leu Asn Asp Tyr Leu Phe Gln Val Pro Glu Gly Pro Pro 1 5 10 15 Ala Arg Ser His Gly Phe Asp Arg Arg Arg Ala Ala Ala Ser Lys Asn 20 25 30 Ala Thr Glu Glu Thr Arg Arg Leu Ala Gly Lys Glu Thr Pro Pro His 35 40 45 Arg Glu Ala Pro Glu Lys Thr Thr Arg Gly Glu Glu Asp Arg Gln Glu 50 55 60 Ser Glu Arg Glu Arg Arg Arg Ala Gly Val Met Asp Lys Lys Asn Gln 65 70 75 80 Asp Leu Asp Asp Glu Thr Arg Arg Arg Gly Thr Ala Glu Glu Glu Arg 85 90 95 Asn Gly Asp 21 441 DNA Toxoplasma gondii CDS (1)..(441) 21 cgg atc gcc tcg gca ctt cct cat tat ccg tcg cat ggg cat ttc ctg 48 Arg Ile Ala Ser Ala Leu Pro His Tyr Pro Ser His Gly His Phe Leu 1 5 10 15 gaa gag gaa caa att ttg ctg ttg gat tgg cag tat caa ctt ggg caa 96 Glu Glu Glu Gln Ile Leu Leu Leu Asp Trp Gln Tyr Gln Leu Gly Gln 20 25 30 cga ggc atg gag tcc ggt gta ccc ccc tgc gtg cag cat ggg gat gcg 144 Arg Gly Met Glu Ser Gly Val Pro Pro Cys Val Gln His Gly Asp Ala 35 40 45 acg aga agt ttg act tca ccg aaa agg gat gtc agt cat gac ggt cac 192 Thr Arg Ser Leu Thr Ser Pro Lys Arg Asp Val Ser His Asp Gly His 50 55 60 caa gga aac agc gga aca aac gca gat gaa gcc ggc caa ggg gcc atg 240 Gln Gly Asn Ser Gly Thr Asn Ala Asp Glu Ala Gly Gln Gly Ala Met 65 70 75 80 gca ggc cga gga aag tgc gag tgg agc cgc acc acc ggt gcc aac gta 288 Ala Gly Arg Gly Lys Cys Glu Trp Ser Arg Thr Thr Gly Ala Asn Val 85 90 95 ggg tcg tcg tca tgt gtg gtt gat gcg tgt ttg gcg tct gcg ggt aga 336 Gly Ser Ser Ser Cys Val Val Asp Ala Cys Leu Ala Ser Ala Gly Arg 100 105 110 cat cag gcg gcg agc atg cgt ccg ttt gca cga gat gga ttc ggc gag 384 His Gln Ala Ala Ser Met Arg Pro Phe Ala Arg Asp Gly Phe Gly Glu 115 120 125 tct act gcg gag aac aga ccc cgt cgg gac ggc gga ctg cca cgt tct 432 Ser Thr Ala Glu Asn Arg Pro Arg Arg Asp Gly Gly Leu Pro Arg Ser 130 135 140 ctt gga tcg 441 Leu Gly Ser 145 22 147 PRT Toxoplasma gondii 22 Arg Ile Ala Ser Ala Leu Pro His Tyr Pro Ser His Gly His Phe Leu 1 5 10 15 Glu Glu Glu Gln Ile Leu Leu Leu Asp Trp Gln Tyr Gln Leu Gly Gln 20 25 30 Arg Gly Met Glu Ser Gly Val Pro Pro Cys Val Gln His Gly Asp Ala 35 40 45 Thr Arg Ser Leu Thr Ser Pro Lys Arg Asp Val Ser His Asp Gly His 50 55 60 Gln Gly Asn Ser Gly Thr Asn Ala Asp Glu Ala Gly Gln Gly Ala Met 65 70 75 80 Ala Gly Arg Gly Lys Cys Glu Trp Ser Arg Thr Thr Gly Ala Asn Val 85 90 95 Gly Ser Ser Ser Cys Val Val Asp Ala Cys Leu Ala Ser Ala Gly Arg 100 105 110 His Gln Ala Ala Ser Met Arg Pro Phe Ala Arg Asp Gly Phe Gly Glu 115 120 125 Ser Thr Ala Glu Asn Arg Pro Arg Arg Asp Gly Gly Leu Pro Arg Ser 130 135 140 Leu Gly Ser 145 23 428 DNA Toxoplasma gondii CDS (1)..(426) 23 cgg cgg cgt cag cgt gca gac cct tca gac tgg gaa gga tgt gag aat 48 Arg Arg Arg Gln Arg Ala Asp Pro Ser Asp Trp Glu Gly Cys Glu Asn 1 5 10 15 gtg gaa aag gat cat ttc ggg agt cgc gag agg cac tcg aat ggg gaa 96 Val Glu Lys Asp His Phe Gly Ser Arg Glu Arg His Ser Asn Gly Glu 20 25 30 gag ttc aag aca cag gga aac gtt ggt cga ggt tca ctg agg cag gaa 144 Glu Phe Lys Thr Gln Gly Asn Val Gly Arg Gly Ser Leu Arg Gln Glu 35 40 45 ccc ttt acc gat gga gtg tac cac gac agg cag cag cgc ttc tcg gag 192 Pro Phe Thr Asp Gly Val Tyr His Asp Arg Gln Gln Arg Phe Ser Glu 50 55 60 aaa gaa cct gcg aag ccg atg ttc act tcc ctc gcg gat ccg agc gtg 240 Lys Glu Pro Ala Lys Pro Met Phe Thr Ser Leu Ala Asp Pro Ser Val 65 70 75 80 agg aga cat ttt aag gag gaa gaa gaa cga cgg aaa ttc cag gaa aag 288 Arg Arg His Phe Lys Glu Glu Glu Glu Arg Arg Lys Phe Gln Glu Lys 85 90 95 gca gaa gag gag atc ttg cgc ctt ctc aaa cgc gca gct gag tgc agc 336 Ala Glu Glu Glu Ile Leu Arg Leu Leu Lys Arg Ala Ala Glu Cys Ser 100 105 110 gag gaa gat ttg aaa agg gaa gaa cgc tcc gaa aag gct acc gaa aag 384 Glu Glu Asp Leu Lys Arg Glu Glu Arg Ser Glu Lys Ala Thr Glu Lys 115 120 125 ggg tcc cgt ctc ttc tct gga gag gag gtg cga ttc ttt ccg cc 428 Gly Ser Arg Leu Phe Ser Gly Glu Glu Val Arg Phe Phe Pro 130 135 140 24 142 PRT Toxoplasma gondii 24 Arg Arg Arg Gln Arg Ala Asp Pro Ser Asp Trp Glu Gly Cys Glu Asn 1 5 10 15 Val Glu Lys Asp His Phe Gly Ser Arg Glu Arg His Ser Asn Gly Glu 20 25 30 Glu Phe Lys Thr Gln Gly Asn Val Gly Arg Gly Ser Leu Arg Gln Glu 35 40 45 Pro Phe Thr Asp Gly Val Tyr His Asp Arg Gln Gln Arg Phe Ser Glu 50 55 60 Lys Glu Pro Ala Lys Pro Met Phe Thr Ser Leu Ala Asp Pro Ser Val 65 70 75 80 Arg Arg His Phe Lys Glu Glu Glu Glu Arg Arg Lys Phe Gln Glu Lys 85 90 95 Ala Glu Glu Glu Ile Leu Arg Leu Leu Lys Arg Ala Ala Glu Cys Ser 100 105 110 Glu Glu Asp Leu Lys Arg Glu Glu Arg Ser Glu Lys Ala Thr Glu Lys 115 120 125 Gly Ser Arg Leu Phe Ser Gly Glu Glu Val Arg Phe Phe Pro 130 135 140 25 282 DNA Toxoplasma gondii 25 cgcgacccgc tgccagtgtt ttgagtctaa ccgccgtatg tcgcggattc cacgtggaaa 60 acgacggacc gtcaagacgc ccgagagtgc cgcaatttca cggaccgttc gttcgattcc 120 accaacacct tacgctagcg cttgctagga aacacacatg cgacggcggc tggggcctgg 180 tcgcggatct atccgtacaa tgggagaatc gtctgatgtc tccactgtcc cgctaccgca 240 caggtcctct acaggccaca ccggtagaca gtgagcggcg gc 282 26 304 DNA Toxoplasma gondii CDS (1)..(303) 26 cgg act ggc aca gga ccg aag cgc agt tcc tcg aaa ccg acg tcg act 48 Arg Thr Gly Thr Gly Pro Lys Arg Ser Ser Ser Lys Pro Thr Ser Thr 1 5 10 15 tgg gtc cga ttg tta gtc cat act gaa aca aca atg gaa aac gaa ttg 96 Trp Val Arg Leu Leu Val His Thr Glu Thr Thr Met Glu Asn Glu Leu 20 25 30 atg aac caa gta agc gac ctc tcg aat gag gct tgg caa aag aaa gaa 144 Met Asn Gln Val Ser Asp Leu Ser Asn Glu Ala Trp Gln Lys Lys Glu 35 40 45 ctt ccc gtc cta cac aag tgg aca aac agc cct gaa cac tcc ctc ttg 192 Leu Pro Val Leu His Lys Trp Thr Asn Ser Pro Glu His Ser Leu Leu 50 55 60 aca tcg gaa gac aga gaa aat agt ctt tca aag cca acc gcg gac tca 240 Thr Ser Glu Asp Arg Glu Asn Ser Leu Ser Lys Pro Thr Ala Asp Ser 65 70 75 80 cca gac agc ttc cgg tat ggc aca cgc aga caa agt cac gca aaa gat 288 Pro Asp Ser Phe Arg Tyr Gly Thr Arg Arg Gln Ser His Ala Lys Asp 85 90 95 ctg ttc tcc gat ccc g 304 Leu Phe Ser Asp Pro 100 27 101 PRT Toxoplasma gondii 27 Arg Thr Gly Thr Gly Pro Lys Arg Ser Ser Ser Lys Pro Thr Ser Thr 1 5 10 15 Trp Val Arg Leu Leu Val His Thr Glu Thr Thr Met Glu Asn Glu Leu 20 25 30 Met Asn Gln Val Ser Asp Leu Ser Asn Glu Ala Trp Gln Lys Lys Glu 35 40 45 Leu Pro Val Leu His Lys Trp Thr Asn Ser Pro Glu His Ser Leu Leu 50 55 60 Thr Ser Glu Asp Arg Glu Asn Ser Leu Ser Lys Pro Thr Ala Asp Ser 65 70 75 80 Pro Asp Ser Phe Arg Tyr Gly Thr Arg Arg Gln Ser His Ala Lys Asp 85 90 95 Leu Phe Ser Asp Pro 100 28 284 DNA Toxoplasma gondii CDS (1)..(282) 28 ccg gac ttc ctc atg tct gaa gat gct tgt ctt gtt cgg ttc gtg cga 48 Pro Asp Phe Leu Met Ser Glu Asp Ala Cys Leu Val Arg Phe Val Arg 1 5 10 15 cac gcg tcg gcc aca cac gcg tat aca cgc agg gca agt gcg agg acg 96 His Ala Ser Ala Thr His Ala Tyr Thr Arg Arg Ala Ser Ala Arg Thr 20 25 30 gta aag ccg ctc aaa ggc caa gga gac aaa gaa cag ggt gcg aca gga 144 Val Lys Pro Leu Lys Gly Gln Gly Asp Lys Glu Gln Gly Ala Thr Gly 35 40 45 aga aat gtt gag gca ata aag aag gaa acc cct ctg aga cgg gaa gcg 192 Arg Asn Val Glu Ala Ile Lys Lys Glu Thr Pro Leu Arg Arg Glu Ala 50 55 60 aga gaa aac gcg ttt ttt tcg acg ttt tcc ccc gac aga gcg agc gcc 240 Arg Glu Asn Ala Phe Phe Ser Thr Phe Ser Pro Asp Arg Ala Ser Ala 65 70 75 80 tcc tgt ctc cgc att cac gcg tgt gcc gcg gca gag gaa ccc gg 284 Ser Cys Leu Arg Ile His Ala Cys Ala Ala Ala Glu Glu Pro 85 90 29 94 PRT Toxoplasma gondii 29 Pro Asp Phe Leu Met Ser Glu Asp Ala Cys Leu Val Arg Phe Val Arg 1 5 10 15 His Ala Ser Ala Thr His Ala Tyr Thr Arg Arg Ala Ser Ala Arg Thr 20 25 30 Val Lys Pro Leu Lys Gly Gln Gly Asp Lys Glu Gln Gly Ala Thr Gly 35 40 45 Arg Asn Val Glu Ala Ile Lys Lys Glu Thr Pro Leu Arg Arg Glu Ala 50 55 60 Arg Glu Asn Ala Phe Phe Ser Thr Phe Ser Pro Asp Arg Ala Ser Ala 65 70 75 80 Ser Cys Leu Arg Ile His Ala Cys Ala Ala Ala Glu Glu Pro 85 90 30 690 DNA Toxoplasma gondii CDS (1)..(690) 30 cga cgt ccc tac cac tat gaa atg ttg gac atc ccg agc atc cgg cgt 48 Arg Arg Pro Tyr His Tyr Glu Met Leu Asp Ile Pro Ser Ile Arg Arg 1 5 10 15 gtg gag ttg cca ggt gcg cag gtc cgt atg cca atg gcc aaa gag ctc 96 Val Glu Leu Pro Gly Ala Gln Val Arg Met Pro Met Ala Lys Glu Leu 20 25 30 gta cgc gat tgg ggt tct gtc gtc cag cag cag acg act tct gat tct 144 Val Arg Asp Trp Gly Ser Val Val Gln Gln Gln Thr Thr Ser Asp Ser 35 40 45 tct agt gac aca cca gct acc cgc agt cgc tct gct gaa gca ctc tgt 192 Ser Ser Asp Thr Pro Ala Thr Arg Ser Arg Ser Ala Glu Ala Leu Cys 50 55 60 gtc ttt tcg acg cct tgt aca gca gac agc gac caa cgt atg aaa ggc 240 Val Phe Ser Thr Pro Cys Thr Ala Asp Ser Asp Gln Arg Met Lys Gly 65 70 75 80 cgc cat tac cca cag tca tat cat acg ccg agg gac agc gcc acc aaa 288 Arg His Tyr Pro Gln Ser Tyr His Thr Pro Arg Asp Ser Ala Thr Lys 85 90 95 aga gaa aaa cct ctc aaa agt aca ttt atc tgg ggc act aca gtg gaa 336 Arg Glu Lys Pro Leu Lys Ser Thr Phe Ile Trp Gly Thr Thr Val Glu 100 105 110 gac aga aac cac ccc atc agc cca gac ccg ttc tca agg ctg cag gga 384 Asp Arg Asn His Pro Ile Ser Pro Asp Pro Phe Ser Arg Leu Gln Gly 115 120 125 tgt ggc cag acc ctc cag gac gag ctc cca tca gct cgc act aga ccg 432 Cys Gly Gln Thr Leu Gln Asp Glu Leu Pro Ser Ala Arg Thr Arg Pro 130 135 140 gga tgg gcc gca ttg gac tcc cgc ctg aaa aac aag gac ccg cag att 480 Gly Trp Ala Ala Leu Asp Ser Arg Leu Lys Asn Lys Asp Pro Gln Ile 145 150 155 160 agc gca gga gac gaa gcc gcg aag gtc gac gac acg tca gcg gaa cct 528 Ser Ala Gly Asp Glu Ala Ala Lys Val Asp Asp Thr Ser Ala Glu Pro 165 170 175 tgc ctg gga acg gta ccg tcc ttt tgt cgg ctt gta aca agt cac gac 576 Cys Leu Gly Thr Val Pro Ser Phe Cys Arg Leu Val Thr Ser His Asp 180 185 190 ttg cta gag gct gga gcg cag gtt cgt gtg ctt ggg cca acg aca gac 624 Leu Leu Glu Ala Gly Ala Gln Val Arg Val Leu Gly Pro Thr Thr Asp 195 200 205 ccg gag aca gag acc gct tct cag ctc cag aca act gag ctt gcc acg 672 Pro Glu Thr Glu Thr Ala Ser Gln Leu Gln Thr Thr Glu Leu Ala Thr 210 215 220 ctg aca act gtg gat ccg 690 Leu Thr Thr Val Asp Pro 225 230 31 230 PRT Toxoplasma gondii 31 Arg Arg Pro Tyr His Tyr Glu Met Leu Asp Ile Pro Ser Ile Arg Arg 1 5 10 15 Val Glu Leu Pro Gly Ala Gln Val Arg Met Pro Met Ala Lys Glu Leu 20 25 30 Val Arg Asp Trp Gly Ser Val Val Gln Gln Gln Thr Thr Ser Asp Ser 35 40 45 Ser Ser Asp Thr Pro Ala Thr Arg Ser Arg Ser Ala Glu Ala Leu Cys 50 55 60 Val Phe Ser Thr Pro Cys Thr Ala Asp Ser Asp Gln Arg Met Lys Gly 65 70 75 80 Arg His Tyr Pro Gln Ser Tyr His Thr Pro Arg Asp Ser Ala Thr Lys 85 90 95 Arg Glu Lys Pro Leu Lys Ser Thr Phe Ile Trp Gly Thr Thr Val Glu 100 105 110 Asp Arg Asn His Pro Ile Ser Pro Asp Pro Phe Ser Arg Leu Gln Gly 115 120 125 Cys Gly Gln Thr Leu Gln Asp Glu Leu Pro Ser Ala Arg Thr Arg Pro 130 135 140 Gly Trp Ala Ala Leu Asp Ser Arg Leu Lys Asn Lys Asp Pro Gln Ile 145 150 155 160 Ser Ala Gly Asp Glu Ala Ala Lys Val Asp Asp Thr Ser Ala Glu Pro 165 170 175 Cys Leu Gly Thr Val Pro Ser Phe Cys Arg Leu Val Thr Ser His Asp 180 185 190 Leu Leu Glu Ala Gly Ala Gln Val Arg Val Leu Gly Pro Thr Thr Asp 195 200 205 Pro Glu Thr Glu Thr Ala Ser Gln Leu Gln Thr Thr Glu Leu Ala Thr 210 215 220 Leu Thr Thr Val Asp Pro 225 230 32 313 DNA Toxoplasma gondii CDS (1)..(162) 32 cgc agg aat aat cct gac ggt cag acg cag cgg ttc gtg cag aca gtg 48 Arg Arg Asn Asn Pro Asp Gly Gln Thr Gln Arg Phe Val Gln Thr Val 1 5 10 15 aag caa tgg cag agt gta aaa agc aga acc aga gcg tgt ctg tcg gcc 96 Lys Gln Trp Gln Ser Val Lys Ser Arg Thr Arg Ala Cys Leu Ser Ala 20 25 30 aaa gga aag aga agg caa atc aca cag cga ata aac ctc acc tct gtc 144 Lys Gly Lys Arg Arg Gln Ile Thr Gln Arg Ile Asn Leu Thr Ser Val 35 40 45 tcg cac ccc gaa gca acg taggagagcc actggtgccg ccactctgtg 192 Ser His Pro Glu Ala Thr 50 ctgacaaaaa agaaccggcc cttcttcggc aggggcgtag ccagtctgca gacatttcaa 252 tttcgaagcg accggaagca gtgaaatttc cagggaagac gcccaggaga cgtcaacagc 312 g 313 33 54 PRT Toxoplasma gondii 33 Arg Arg Asn Asn Pro Asp Gly Gln Thr Gln Arg Phe Val Gln Thr Val 1 5 10 15 Lys Gln Trp Gln Ser Val Lys Ser Arg Thr Arg Ala Cys Leu Ser Ala 20 25 30 Lys Gly Lys Arg Arg Gln Ile Thr Gln Arg Ile Asn Leu Thr Ser Val 35 40 45 Ser His Pro Glu Ala Thr 50 34 389 DNA Toxoplasma gondii CDS (1)..(195) 34 cgc tct cac gga ggc gca agt gag ttt tgg ctt tac ctc ttg aga aaa 48 Arg Ser His Gly Gly Ala Ser Glu Phe Trp Leu Tyr Leu Leu Arg Lys 1 5 10 15 cgg aac tct cca gaa gat cct cgt tcc gtc cgt cct cca cgt ccg tgt 96 Arg Asn Ser Pro Glu Asp Pro Arg Ser Val Arg Pro Pro Arg Pro Cys 20 25 30 gtc ttt cga gag atg gac aaa cag aga agc aga atc aag aaa gga ttc 144 Val Phe Arg Glu Met Asp Lys Gln Arg Ser Arg Ile Lys Lys Gly Phe 35 40 45 gca ttt gca ctt ggg tct gtc ttt tac ttc caa ggt cgt gaa ttt cat 192 Ala Phe Ala Leu Gly Ser Val Phe Tyr Phe Gln Gly Arg Glu Phe His 50 55 60 gcg tgacgaataa gagagacagg agtaggccgc aacttctcgt ctcttggcag 245 Ala 65 tttccgattt ctcttccttc cgaagccctt gctgccaagc actccatccg gtccggttgg 305 tctctctcag gttcttcgag caatcgacgc gatgttctct gctgtcgatg cgggggcttg 365 gcgtgtctgc atatctcttc cagg 389 35 65 PRT Toxoplasma gondii 35 Arg Ser His Gly Gly Ala Ser Glu Phe Trp Leu Tyr Leu Leu Arg Lys 1 5 10 15 Arg Asn Ser Pro Glu Asp Pro Arg Ser Val Arg Pro Pro Arg Pro Cys 20 25 30 Val Phe Arg Glu Met Asp Lys Gln Arg Ser Arg Ile Lys Lys Gly Phe 35 40 45 Ala Phe Ala Leu Gly Ser Val Phe Tyr Phe Gln Gly Arg Glu Phe His 50 55 60 Ala 65 36 548 DNA Toxoplasma gondii CDS (1)..(546) 36 cga tct tct tct cac cgt tcg ctc ttc ttt ctc tcc gtt gtc tgc gtc 48 Arg Ser Ser Ser His Arg Ser Leu Phe Phe Leu Ser Val Val Cys Val 1 5 10 15 ctc tcc cca ctg cct ctc gcc gtc cgc gtc gtt cgc ctc cgg ggg agc 96 Leu Ser Pro Leu Pro Leu Ala Val Arg Val Val Arg Leu Arg Gly Ser 20 25 30 cgg cag tgt ggc gag cac ggc ggc ttc gct cga aga gca gcg cct cgc 144 Arg Gln Cys Gly Glu His Gly Gly Phe Ala Arg Arg Ala Ala Pro Arg 35 40 45 gcg ttc ctt cgg gga cgc ccg aca agc ctg cgt tca tcc cag aga acg 192 Ala Phe Leu Arg Gly Arg Pro Thr Ser Leu Arg Ser Ser Gln Arg Thr 50 55 60 cct cgg tct gcg caa atg cgc cgt cgc tcc cca cac atg aga tgc ttt 240 Pro Arg Ser Ala Gln Met Arg Arg Arg Ser Pro His Met Arg Cys Phe 65 70 75 80 tgc gag act ggc agc agc gcc tgt tgc gag cga agg aag agg agc gcg 288 Cys Glu Thr Gly Ser Ser Ala Cys Cys Glu Arg Arg Lys Arg Ser Ala 85 90 95 agg gat ggc aac ctc cag gag agc gcg aag aag gcc cgt ccc tcg aat 336 Arg Asp Gly Asn Leu Gln Glu Ser Ala Lys Lys Ala Arg Pro Ser Asn 100 105 110 ccg atg agc aag gca atc cat gct tca gtc gac cga gtc cag tgc ggt 384 Pro Met Ser Lys Ala Ile His Ala Ser Val Asp Arg Val Gln Cys Gly 115 120 125 caa cag gac tcg aaa agg tcg agg aga tgg ccg gcg gct tcg act tct 432 Gln Gln Asp Ser Lys Arg Ser Arg Arg Trp Pro Ala Ala Ser Thr Ser 130 135 140 gcg ggg gtg cag gcg att cgt gga aga aac agc gaa gtc ccg agg gtg 480 Ala Gly Val Gln Ala Ile Arg Gly Arg Asn Ser Glu Val Pro Arg Val 145 150 155 160 gac agg tcc gcc aag tcg cct acg cca ctc tcg aag aag ccg aaa atg 528 Asp Arg Ser Ala Lys Ser Pro Thr Pro Leu Ser Lys Lys Pro Lys Met 165 170 175 cgg tct ctg ccg cat acg gc 548 Arg Ser Leu Pro His Thr 180 37 182 PRT Toxoplasma gondii 37 Arg Ser Ser Ser His Arg Ser Leu Phe Phe Leu Ser Val Val Cys Val 1 5 10 15 Leu Ser Pro Leu Pro Leu Ala Val Arg Val Val Arg Leu Arg Gly Ser 20 25 30 Arg Gln Cys Gly Glu His Gly Gly Phe Ala Arg Arg Ala Ala Pro Arg 35 40 45 Ala Phe Leu Arg Gly Arg Pro Thr Ser Leu Arg Ser Ser Gln Arg Thr 50 55 60 Pro Arg Ser Ala Gln Met Arg Arg Arg Ser Pro His Met Arg Cys Phe 65 70 75 80 Cys Glu Thr Gly Ser Ser Ala Cys Cys Glu Arg Arg Lys Arg Ser Ala 85 90 95 Arg Asp Gly Asn Leu Gln Glu Ser Ala Lys Lys Ala Arg Pro Ser Asn 100 105 110 Pro Met Ser Lys Ala Ile His Ala Ser Val Asp Arg Val Gln Cys Gly 115 120 125 Gln Gln Asp Ser Lys Arg Ser Arg Arg Trp Pro Ala Ala Ser Thr Ser 130 135 140 Ala Gly Val Gln Ala Ile Arg Gly Arg Asn Ser Glu Val Pro Arg Val 145 150 155 160 Asp Arg Ser Ala Lys Ser Pro Thr Pro Leu Ser Lys Lys Pro Lys Met 165 170 175 Arg Ser Leu Pro His Thr 180 38 310 DNA Toxoplasma gondii CDS (1)..(285) 38 cgg gat cca gct gca cct aac agc aca cag gct gtg gca gcc gct ygt 48 Arg Asp Pro Ala Ala Pro Asn Ser Thr Gln Ala Val Ala Ala Ala Xaa 1 5 10 15 acc gtg gta gtg atg aaa acm gam gmw gaa gtg tcc ggt gac aac stc 96 Thr Val Val Val Met Lys Xaa Xaa Xaa Glu Val Ser Gly Asp Asn Xaa 20 25 30 agt caa ccg ggt agg sgt ccg ccg tcg cca aag ccg caw acg acg aag 144 Ser Gln Pro Gly Arg Xaa Pro Pro Ser Pro Lys Pro Xaa Thr Thr Lys 35 40 45 ttt ccg cgg aga gag tca cca gac srg cag ggg acg agg cgg aga act 192 Phe Pro Arg Arg Glu Ser Pro Asp Xaa Gln Gly Thr Arg Arg Arg Thr 50 55 60 gaa agc cga ggc gct gtt agc agg gta tgg cca ggg gaa aac cag mga 240 Glu Ser Arg Gly Ala Val Ser Arg Val Trp Pro Gly Glu Asn Gln Xaa 65 70 75 80 aga ctg tct gcc gtc gac gat tcg ata ccg gct aac cca tcg ctt 285 Arg Leu Ser Ala Val Asp Asp Ser Ile Pro Ala Asn Pro Ser Leu 85 90 95 tgaacgggtg gcgccctgcg atccg 310 39 95 PRT Toxoplasma gondii misc_feature (16)..(16) The ′Xaa′ at location 16 stands for Arg, or Cys. 39 Arg Asp Pro Ala Ala Pro Asn Ser Thr Gln Ala Val Ala Ala Ala Xaa 1 5 10 15 Thr Val Val Val Met Lys Xaa Xaa Xaa Glu Val Ser Gly Asp Asn Xaa 20 25 30 Ser Gln Pro Gly Arg Xaa Pro Pro Ser Pro Lys Pro Xaa Thr Thr Lys 35 40 45 Phe Pro Arg Arg Glu Ser Pro Asp Xaa Gln Gly Thr Arg Arg Arg Thr 50 55 60 Glu Ser Arg Gly Ala Val Ser Arg Val Trp Pro Gly Glu Asn Gln Xaa 65 70 75 80 Arg Leu Ser Ala Val Asp Asp Ser Ile Pro Ala Asn Pro Ser Leu 85 90 95 40 220 DNA Toxoplasma gondii CDS (1)..(219) 40 cgg gat cct tgc ctc agt gtc agg gac atc gag cgt atg ttc cgt ata 48 Arg Asp Pro Cys Leu Ser Val Arg Asp Ile Glu Arg Met Phe Arg Ile 1 5 10 15 tgt cac cat cgt tct ctg tct cgc ctc ctt ggc gcc tct gtt gct tgg 96 Cys His His Arg Ser Leu Ser Arg Leu Leu Gly Ala Ser Val Ala Trp 20 25 30 gat gca gtt gac tgc tct tcg gct tcg tcg cgc aca cac tgg tcc ttg 144 Asp Ala Val Asp Cys Ser Ser Ala Ser Ser Arg Thr His Trp Ser Leu 35 40 45 ctt gcg tct gag ctc cct tcc gaa cgg gtt ctt ttt cga ctg cag gtt 192 Leu Ala Ser Glu Leu Pro Ser Glu Arg Val Leu Phe Arg Leu Gln Val 50 55 60 ctt cta aaa ttg cca gtt ccc gat ccc g 220 Leu Leu Lys Leu Pro Val Pro Asp Pro 65 70 41 73 PRT Toxoplasma gondii 41 Arg Asp Pro Cys Leu Ser Val Arg Asp Ile Glu Arg Met Phe Arg Ile 1 5 10 15 Cys His His Arg Ser Leu Ser Arg Leu Leu Gly Ala Ser Val Ala Trp 20 25 30 Asp Ala Val Asp Cys Ser Ser Ala Ser Ser Arg Thr His Trp Ser Leu 35 40 45 Leu Ala Ser Glu Leu Pro Ser Glu Arg Val Leu Phe Arg Leu Gln Val 50 55 60 Leu Leu Lys Leu Pro Val Pro Asp Pro 65 70 42 642 DNA Toxoplasma gondii CDS (1)..(102) 42 cgg cgg gaa acc atg gag ntt tna tan nnt aca act tcc ana tgc atg 48 Arg Arg Glu Thr Met Glu Xaa Xaa Xaa Xaa Thr Thr Ser Xaa Cys Met 1 5 10 15 gta ggt acc caa aat gca aac tat aga cac aaa caa ang naa aat acn 96 Val Gly Thr Gln Asn Ala Asn Tyr Arg His Lys Gln Xaa Xaa Asn Xaa 20 25 30 tgg ggg tgatgcanna nggggangtn ggggacagan aaatngtcct tcagttntca 152 Trp Gly tctttgcccg cngcgtngan nacgcaatac agcgggcgca gcggctcatc acaccantac 212 acganttntg caaagaagca cntntcttct ctcttcangt ctctntacca cttctaccac 272 ctgcaccccc gcttcgtcca caaaacacat ttgaacgatg tgaccaaaat gatccacaaa 332 aacacgattg tttcgtcaca tgaaacctca gcaaattcag gcgccaggac ggctccttca 392 aacgtctaat ccagagtcct ctccgctcaa aaacacgatt gtttcgtcac atggaacctc 452 agcaaattca ggcgccagga cggcctccct tcaaacgtcn taatccagag tcntttccgn 512 tccatcccca cnttntgccc nttcacgttt ccagtggtgg catgtcatcg tctccccctg 572 tcaacgtccc atcacctgag tacaggcgcg aagcagcgga cagctgttct tccatctccc 632 tgtattccgg 642 43 34 PRT Toxoplasma gondii misc_feature (7)..(7) The ′Xaa′ at location 7 stands for Ile, Val, Leu, or Phe. 43 Arg Arg Glu Thr Met Glu Xaa Xaa Xaa Xaa Thr Thr Ser Xaa Cys Met 1 5 10 15 Val Gly Thr Gln Asn Ala Asn Tyr Arg His Lys Gln Xaa Xaa Asn Xaa 20 25 30 Trp Gly 44 381 DNA Toxoplasma gondii CDS (1)..(81) 44 cgg atc cac aaa aac acg att gtt tcg tca cat gga acc tca gca aat 48 Arg Ile His Lys Asn Thr Ile Val Ser Ser His Gly Thr Ser Ala Asn 1 5 10 15 tca ggc gcc agg acg gcc tcc ctt caa acg tcc taatccagag tcctctccgc 101 Ser Gly Ala Arg Thr Ala Ser Leu Gln Thr Ser 20 25 tccatcccca ccttctgccc cttcacgttt ccagtggtgg catgtcatcg tctccccctg 161 tcaacgtccc atcacctgag tacaggcgcg aagcagcgga cagctgttct tccatctccc 221 tgtattccgg agtctctatc gcttgcaagg cgagcaggcg ggcctcgaca gaagggttaa 281 tcaacttgta aaccagaagt ttcacgttct ctggcacccg ccggcacctc gaaaaaaaga 341 attcgacact gtattcgtac cccgattttg tatcgggagg 381 45 27 PRT Toxoplasma gondii 45 Arg Ile His Lys Asn Thr Ile Val Ser Ser His Gly Thr Ser Ala Asn 1 5 10 15 Ser Gly Ala Arg Thr Ala Ser Leu Gln Thr Ser 20 25 46 432 DNA Toxoplasma gondii CDS (1)..(255) 46 ttt ttt tcg agg tgc cgg cgg gtg cca gag aac gtg aaa ctt ctg gtt 48 Phe Phe Ser Arg Cys Arg Arg Val Pro Glu Asn Val Lys Leu Leu Val 1 5 10 15 tac aag ttg att aac cct tct gtc gag gcc cgc ctg ctc gcc ttg caa 96 Tyr Lys Leu Ile Asn Pro Ser Val Glu Ala Arg Leu Leu Ala Leu Gln 20 25 30 gcg ata gag act ccg gaa tac agg gag atg gaa gaa cag ctg tcc gct 144 Ala Ile Glu Thr Pro Glu Tyr Arg Glu Met Glu Glu Gln Leu Ser Ala 35 40 45 gct tcg cgc ctg tac tca ggt gat ggg acg ttg aca ggg gga gac gat 192 Ala Ser Arg Leu Tyr Ser Gly Asp Gly Thr Leu Thr Gly Gly Asp Asp 50 55 60 gac atg cca cca ctg aaa cgt gaa ggg gca gaa ggt ggg gat gga gcg 240 Asp Met Pro Pro Leu Lys Arg Glu Gly Ala Glu Gly Gly Asp Gly Ala 65 70 75 80 gag agg act ctg gat taggacgttt gaagggaggc cgtcctggcg cctgaatttg 295 Glu Arg Thr Leu Asp 85 ctgaggttcc atgtgacgaa acaatcgtgt ttttgagcgg agaggactct ggattaggac 355 gtttgaaggg aggccgtcct ggcgcctgaa tttgctgagg tttcatgtga cgaaacaatc 415 gtgtttttgt ggatccg 432 47 85 PRT Toxoplasma gondii 47 Phe Phe Ser Arg Cys Arg Arg Val Pro Glu Asn Val Lys Leu Leu Val 1 5 10 15 Tyr Lys Leu Ile Asn Pro Ser Val Glu Ala Arg Leu Leu Ala Leu Gln 20 25 30 Ala Ile Glu Thr Pro Glu Tyr Arg Glu Met Glu Glu Gln Leu Ser Ala 35 40 45 Ala Ser Arg Leu Tyr Ser Gly Asp Gly Thr Leu Thr Gly Gly Asp Asp 50 55 60 Asp Met Pro Pro Leu Lys Arg Glu Gly Ala Glu Gly Gly Asp Gly Ala 65 70 75 80 Glu Arg Thr Leu Asp 85 48 282 DNA Toxoplasma gondii CDS (1)..(105) 48 cgg cgg gct gct tcc cag gaa cgt ttc gcg gct gcg tgt gga cag caa 48 Arg Arg Ala Ala Ser Gln Glu Arg Phe Ala Ala Ala Cys Gly Gln Gln 1 5 10 15 agc ctt acc ctc gag ttt tct ctc gtg gct gcc gac gtc ggc gac gcc 96 Ser Leu Thr Leu Glu Phe Ser Leu Val Ala Ala Asp Val Gly Asp Ala 20 25 30 gcg aac tcc tgagatcaaa cacacaaaaa ggccctcgtt gaaacatccc 145 Ala Asn Ser 35 cacgcacgag cagaaggacg cgagcaagaa aacgtctcca gccttctctt gcggtcgctt 205 gcaagcggga gtgtcgtctc cctctgtctt tctctgtgta ctcgaagccc agcgacttcc 265 ttgtcgagtt tctccgg 282 49 35 PRT Toxoplasma gondii 49 Arg Arg Ala Ala Ser Gln Glu Arg Phe Ala Ala Ala Cys Gly Gln Gln 1 5 10 15 Ser Leu Thr Leu Glu Phe Ser Leu Val Ala Ala Asp Val Gly Asp Ala 20 25 30 Ala Asn Ser 35 50 466 DNA Toxoplasma gondii CDS (1)..(213) 50 ttt ttt tsg agg tgc cgg cgg gtg cca gag aam gtg aaa ttc tgg ttt 48 Phe Phe Xaa Arg Cys Arg Arg Val Pro Glu Xaa Val Lys Phe Trp Phe 1 5 10 15 aac aag ttg att aac cct tct gtc gag gcc cgc ctg ttc gcc ttg caa 96 Asn Lys Leu Ile Asn Pro Ser Val Glu Ala Arg Leu Phe Ala Leu Gln 20 25 30 gcg ata gag ayt ccg gaa tac agg gag atg gaa gaa cag ctg tcc gct 144 Ala Ile Glu Xaa Pro Glu Tyr Arg Glu Met Glu Glu Gln Leu Ser Ala 35 40 45 gct tcg cgc ctg tac tca ggt gat ggg acg ttg aca ggg gga gac gat 192 Ala Ser Arg Leu Tyr Ser Gly Asp Gly Thr Leu Thr Gly Gly Asp Asp 50 55 60 gac atg cca cca ctg gaa acg tgaaggggca gaaggtgggg atggagcgga 243 Asp Met Pro Pro Leu Glu Thr 65 70 gaggactctg gattaggacg tttgaaggga ggccgtcctg gcgcctgaat ttgctgaggt 303 tccatgtgac gaaacaatcg tgtttttgag cggagaggac tctggattag gacgtttgaa 363 gggaggccgt cctggcgcct gaatttgctg aggtttcatg tgacgaaaca atcgtgtttt 423 tgtggatcct cccgatacaa aatcggggta cgaatacagt gtc 466 51 71 PRT Toxoplasma gondii misc_feature (3)..(3) The ′Xaa′ at location 3 stands for Trp, or Ser. 51 Phe Phe Xaa Arg Cys Arg Arg Val Pro Glu Xaa Val Lys Phe Trp Phe 1 5 10 15 Asn Lys Leu Ile Asn Pro Ser Val Glu Ala Arg Leu Phe Ala Leu Gln 20 25 30 Ala Ile Glu Xaa Pro Glu Tyr Arg Glu Met Glu Glu Gln Leu Ser Ala 35 40 45 Ala Ser Arg Leu Tyr Ser Gly Asp Gly Thr Leu Thr Gly Gly Asp Asp 50 55 60 Asp Met Pro Pro Leu Glu Thr 65 70 52 539 DNA Toxoplasma gondii CDS (1)..(60) 52 gat agc aca cgg aat gga tgc ntg grg gtt ggg agc gac tat att tnt 48 Asp Ser Thr Arg Asn Gly Cys Xaa Xaa Val Gly Ser Asp Tyr Ile Xaa 1 5 10 15 tat ttg gtg ctt taaagctcca actacaggac ctgaagagga atactccatc 100 Tyr Leu Val Leu 20 gaattcttgt tctcattgtg ccggcgggca ccagagaacg tgaaactact ggtttacaag 160 ttgattaacc cttctgtcga ggcccgcctg tcgccttgca agctacggag actccggaat 220 acagggagat ggaagaacag ctgtccgctg cttcgcgcct gtactcaggt gatgggacgt 280 tgacaggggg agacgatgac atgccaccac cggaaacgtg aaggggcaga aggtggggat 340 ggagcggaga ggactctgga ttaggacgtt tgaagggagg ccgtcctggc gcctgaattt 400 tgctgaggtt tcatgtgacg aaacaatcgt gtttttgtgg atccggaatt ccggatcggg 460 gaatttcctc tcacaccgct tggggccgag acacgcgcag agacgttgtt gggcctccac 520 aacacagggg ggattaagg 539 53 20 PRT Toxoplasma gondii misc_feature (8)..(8) The ′Xaa′ at location 8 stands for Met, Val, or Leu. 53 Asp Ser Thr Arg Asn Gly Cys Xaa Xaa Val Gly Ser Asp Tyr Ile Xaa 1 5 10 15 Tyr Leu Val Leu 20 54 1233 DNA Toxoplasma gondii 54 cgggatccct gaaggagagc atattcctga agagttccca gaaggcgagc atgttcctga 60 ggaggaaatc cctgaaggag aacatattcc tgaggaggag ttccctgaag gagagcatgt 120 tcctgaggag gagatccctg aaggcgagca tgttcctgag gaggagctcc ctggaggaga 180 acttattcct gaggaggaga tccctgaagg agagcatgtt cctgaagagc tccctgaagg 240 cgagcatgtt cctgaggagg agatccctga aggagagcat gttcctgaag aggaaatccc 300 tgaaggcgag catgttcctg aggaggagat ccctgaagga gaacatgctc cagaggaaga 360 gactcctgca cctgaggaga ccgaaaagga ggaggaagaa ggcgtgccag tcgcagcgat 420 tgccggtggt gtcgtcggag gtgtgttgct cattgctggt ggtgcaggtg ctgccgtgta 480 cacaaaccaa ggtggcgttg aagcagctga agacgaagtg atgtttgaga gcgaagaaga 540 cggaacccag gctggcgaga accgcgagag gagacggtca ttgagatcga agatgacgca 600 tgggcagaca ttggactaaa ggagactagg aggtctgtgt gggcacatgc aggcgtgcga 660 caaaaccgtg atcgcgaggt attctgtgtt acgggcggag cgtctgcggc tgtccttcga 720 aggggaggcg gagtgacact ctgagctagg taccagacga acgcagccat ttgtgtccgt 780 ccgctgtttc ttgatcctgg acacagacca gacccgacac gggtgctgaa cggtaatgca 840 aactgtcggg aaaacctctc cggcgcgaaa acagagattt acacaccgtt gagatctgag 900 tagcggaagt gcatgcgcat gtgtgtccac gagaaaggaa gattttcttt cgagaacgtt 960 tccctttgtt cgcacattcc tacgcggggc tcgtgccgca tgcatgtcga gaggactgcg 1020 ttcgagtgct ctttcgccgt tgcagtgctg gacattgcgg cgtgggcaaa ggatagaagt 1080 gacgacctct gacatggcag tgaaggtggc agagactcgc ggaaaatcca aaaactctct 1140 gccgtttcgg tcgaggaatc acctttcttt ttttcgtctc tggacccgcc tccgtggtgt 1200 tcccttgccc ttgcaagccg ctgctatgta gcg 1233 55 411 DNA Toxoplasma gondii CDS (1)..(180) 55 cga cga cct cgg ctt ctc cac ata caa gga atg tct tcc tgt ttt gga 48 Arg Arg Pro Arg Leu Leu His Ile Gln Gly Met Ser Ser Cys Phe Gly 1 5 10 15 cct aag caa ccc gac ctt tat ctt ttg cac cag ctg tgc ttc ttt tac 96 Pro Lys Gln Pro Asp Leu Tyr Leu Leu His Gln Leu Cys Phe Phe Tyr 20 25 30 ttg tgt gaa tca ctg tgt aaa caa act gag aag cgt gta tgc atg gtc 144 Leu Cys Glu Ser Leu Cys Lys Gln Thr Glu Lys Arg Val Cys Met Val 35 40 45 gcc ttt gca tgt gga cga ggc cgc cgt cgc aca gcg tgattctcat 190 Ala Phe Ala Cys Gly Arg Gly Arg Arg Arg Thr Ala 50 55 60 ctctgttgcg tgggggcgcg gatgagaatc aactccttag tgtcacagca tcagtgcagt 250 gcgtggagca acaattcttt tcgtgcacag acaagacaca ccagatatga aagaacacta 310 acgggcactt accgttgtcc gtctatatat ttatatttag tcaatgctga gattagacct 370 agacttgtga gagagagtgt gaaacccaaa tgcctagatc c 411 56 60 PRT Toxoplasma gondii 56 Arg Arg Pro Arg Leu Leu His Ile Gln Gly Met Ser Ser Cys Phe Gly 1 5 10 15 Pro Lys Gln Pro Asp Leu Tyr Leu Leu His Gln Leu Cys Phe Phe Tyr 20 25 30 Leu Cys Glu Ser Leu Cys Lys Gln Thr Glu Lys Arg Val Cys Met Val 35 40 45 Ala Phe Ala Cys Gly Arg Gly Arg Arg Arg Thr Ala 50 55 60 57 441 DNA Toxoplasma gondii CDS (1)..(354) 57 cgg atc gaa gaa gct gaa gcg gag aca cga atc gcc gag aca ggc aaa 48 Arg Ile Glu Glu Ala Glu Ala Glu Thr Arg Ile Ala Glu Thr Gly Lys 1 5 10 15 cac agc ggg aat gag aat cga ctc tgc gat aga agt ggg cgc cat gga 96 His Ser Gly Asn Glu Asn Arg Leu Cys Asp Arg Ser Gly Arg His Gly 20 25 30 atc aag gaa ccg agg cga agg agg ccc atg ctg ttg gcc gag gtg ccc 144 Ile Lys Glu Pro Arg Arg Arg Arg Pro Met Leu Leu Ala Glu Val Pro 35 40 45 tgc ttg tkg gag ggc gcc cga cga aca ggg ttt cgt cag aga caa gca 192 Cys Leu Xaa Glu Gly Ala Arg Arg Thr Gly Phe Arg Gln Arg Gln Ala 50 55 60 ctt cgc tcg cgt ttg tgg ccc ctt gcc gtg cgg cac gcg tgc gta kcc 240 Leu Arg Ser Arg Leu Trp Pro Leu Ala Val Arg His Ala Cys Val Xaa 65 70 75 80 ttc aag aga gac tgc gga agc aga gag agg cca ttg agg ctg tcc gag 288 Phe Lys Arg Asp Cys Gly Ser Arg Glu Arg Pro Leu Arg Leu Ser Glu 85 90 95 gtc ggc tcc agc cga gct gga tcc gaa tcc tgc agc csg gga tcc act 336 Val Gly Ser Ser Arg Ala Gly Ser Glu Ser Cys Ser Xaa Gly Ser Thr 100 105 110 agt cta gac gcg cac ccg tgacccactt caggaygcgg vmatwatrcm 384 Ser Leu Asp Ala His Pro 115 ggggcagatt tttwmggyta actatcattt ccccstwgtt gattmttcca gcaattg 441 58 118 PRT Toxoplasma gondii misc_feature (51)..(51) The ′Xaa′ at location 51 stands for Trp, or Leu. 58 Arg Ile Glu Glu Ala Glu Ala Glu Thr Arg Ile Ala Glu Thr Gly Lys 1 5 10 15 His Ser Gly Asn Glu Asn Arg Leu Cys Asp Arg Ser Gly Arg His Gly 20 25 30 Ile Lys Glu Pro Arg Arg Arg Arg Pro Met Leu Leu Ala Glu Val Pro 35 40 45 Cys Leu Xaa Glu Gly Ala Arg Arg Thr Gly Phe Arg Gln Arg Gln Ala 50 55 60 Leu Arg Ser Arg Leu Trp Pro Leu Ala Val Arg His Ala Cys Val Xaa 65 70 75 80 Phe Lys Arg Asp Cys Gly Ser Arg Glu Arg Pro Leu Arg Leu Ser Glu 85 90 95 Val Gly Ser Ser Arg Ala Gly Ser Glu Ser Cys Ser Xaa Gly Ser Thr 100 105 110 Ser Leu Asp Ala His Pro 115 59 491 DNA Toxoplasma gondii CDS (1)..(102) 59 cgg cgg tat tat agg aca cgg ccg cct gct ggt aac atc tgt aat tta 48 Arg Arg Tyr Tyr Arg Thr Arg Pro Pro Ala Gly Asn Ile Cys Asn Leu 1 5 10 15 tca ttg tat ccc gtc gtc ccg tgt tcc aaa ctg gga atc ttt tct ttc 96 Ser Leu Tyr Pro Val Val Pro Cys Ser Lys Leu Gly Ile Phe Ser Phe 20 25 30 ctg agc tgacggtttg gcccgcaagc tcagccgagt acgaaaccat gattaggttg 152 Leu Ser gaggcctaat gtgctttttc gccagctgtc aaacgggcag ccaaggttga tttctctatg 212 agttgtcctc cgcgctctcg aattggtatt tcgtggtttc agattgaaag cgtcactcga 272 gctattacga ggcgtttcag caaaaaggaa gaatcactca gacacctgac cgacgcttga 332 tgtgctggcg gttgtgcaaa tccaggcatc actcaacgcc gatgctcagc aggacccatg 392 gatcttaaga ggttctgttc cactacatca gtgagagttt caaaaagaat cctgataact 452 acgcgcttct acaggtgccg cctttatggc aacgatccg 491 60 34 PRT Toxoplasma gondii 60 Arg Arg Tyr Tyr Arg Thr Arg Pro Pro Ala Gly Asn Ile Cys Asn Leu 1 5 10 15 Ser Leu Tyr Pro Val Val Pro Cys Ser Lys Leu Gly Ile Phe Ser Phe 20 25 30 Leu Ser 61 387 DNA Toxoplasma gondii CDS (1)..(387) 61 cgg atc gct ctg agt ctc ttt ggg ctc cct gcc gca tgc agg cat gaa 48 Arg Ile Ala Leu Ser Leu Phe Gly Leu Pro Ala Ala Cys Arg His Glu 1 5 10 15 agt gtc tcg ccg cga gag aca gag aag gaa gtg cag agc gag cgt ggg 96 Ser Val Ser Pro Arg Glu Thr Glu Lys Glu Val Gln Ser Glu Arg Gly 20 25 30 cga gaa cgg acg cag aaa ggc gca ggc gag aag gag acc ggc gta gac 144 Arg Glu Arg Thr Gln Lys Gly Ala Gly Glu Lys Glu Thr Gly Val Asp 35 40 45 gga gtg act gga gag cag gtc tta gcg ctc act aag ggt gaa cct gaa 192 Gly Val Thr Gly Glu Gln Val Leu Ala Leu Thr Lys Gly Glu Pro Glu 50 55 60 gcg gca gaa gaa gcg aga gaa gag gac gag gga aag gga gaa gac aga 240 Ala Ala Glu Glu Ala Arg Glu Glu Asp Glu Gly Lys Gly Glu Asp Arg 65 70 75 80 tgg tac gag gaa ggc gcg agg cga gag aaa gag gcg gct cga gtc atg 288 Trp Tyr Glu Glu Gly Ala Arg Arg Glu Lys Glu Ala Ala Arg Val Met 85 90 95 tcc act ccg cag acg tat gcc gaa gcc acc gac aca aca gct gca tgc 336 Ser Thr Pro Gln Thr Tyr Ala Glu Ala Thr Asp Thr Thr Ala Ala Cys 100 105 110 aga gac gaa agg gag ctc gcc tcg ggg gtc gaa gag aag aca cag gat 384 Arg Asp Glu Arg Glu Leu Ala Ser Gly Val Glu Glu Lys Thr Gln Asp 115 120 125 ccg 387 Pro 62 129 PRT Toxoplasma gondii 62 Arg Ile Ala Leu Ser Leu Phe Gly Leu Pro Ala Ala Cys Arg His Glu 1 5 10 15 Ser Val Ser Pro Arg Glu Thr Glu Lys Glu Val Gln Ser Glu Arg Gly 20 25 30 Arg Glu Arg Thr Gln Lys Gly Ala Gly Glu Lys Glu Thr Gly Val Asp 35 40 45 Gly Val Thr Gly Glu Gln Val Leu Ala Leu Thr Lys Gly Glu Pro Glu 50 55 60 Ala Ala Glu Glu Ala Arg Glu Glu Asp Glu Gly Lys Gly Glu Asp Arg 65 70 75 80 Trp Tyr Glu Glu Gly Ala Arg Arg Glu Lys Glu Ala Ala Arg Val Met 85 90 95 Ser Thr Pro Gln Thr Tyr Ala Glu Ala Thr Asp Thr Thr Ala Ala Cys 100 105 110 Arg Asp Glu Arg Glu Leu Ala Ser Gly Val Glu Glu Lys Thr Gln Asp 115 120 125 Pro 63 417 DNA Toxoplasma gondii CDS (1)..(417) 63 ctt gca tgc gct gtg gca atg gaa gaa gca ccc gcg cca ggg caa cca 48 Leu Ala Cys Ala Val Ala Met Glu Glu Ala Pro Ala Pro Gly Gln Pro 1 5 10 15 ccc gaa gaa ggg gac gat ggc ggn tnt cag cag cgc ctg gag atc gct 96 Pro Glu Glu Gly Asp Asp Gly Gly Xaa Gln Gln Arg Leu Glu Ile Ala 20 25 30 ctg agt ctc ttt ggg ctc cct gcc gca tgc agg cat gaa agt ntn tcg 144 Leu Ser Leu Phe Gly Leu Pro Ala Ala Cys Arg His Glu Ser Xaa Ser 35 40 45 ccg cga gag aca gag aag gaa gtg cag agc gag cgt ggg cga gaa cgg 192 Pro Arg Glu Thr Glu Lys Glu Val Gln Ser Glu Arg Gly Arg Glu Arg 50 55 60 acg cag aaa ggc gca ggc gag aag gag acc ggc gta gac gga gtg act 240 Thr Gln Lys Gly Ala Gly Glu Lys Glu Thr Gly Val Asp Gly Val Thr 65 70 75 80 gga gag cag ctc tta gcg ctc act aag ggt gaa cct gaa gcg gca gaa 288 Gly Glu Gln Leu Leu Ala Leu Thr Lys Gly Glu Pro Glu Ala Ala Glu 85 90 95 gaa gcg aga gaa gag gac gag gga aag gga gaa gac aga tgg aac gag 336 Glu Ala Arg Glu Glu Asp Glu Gly Lys Gly Glu Asp Arg Trp Asn Glu 100 105 110 gaa ggc gcg agg cga gag aaa gag gcg gct cga gtc atg tcc act ccg 384 Glu Gly Ala Arg Arg Glu Lys Glu Ala Ala Arg Val Met Ser Thr Pro 115 120 125 cag acg tat gcc gaa gcc acc gac aca aca gcg 417 Gln Thr Tyr Ala Glu Ala Thr Asp Thr Thr Ala 130 135 64 139 PRT Toxoplasma gondii misc_feature (25)..(25) The ′Xaa′ at location 25 stands for Tyr, Cys, Ser, or Phe. 64 Leu Ala Cys Ala Val Ala Met Glu Glu Ala Pro Ala Pro Gly Gln Pro 1 5 10 15 Pro Glu Glu Gly Asp Asp Gly Gly Xaa Gln Gln Arg Leu Glu Ile Ala 20 25 30 Leu Ser Leu Phe Gly Leu Pro Ala Ala Cys Arg His Glu Ser Xaa Ser 35 40 45 Pro Arg Glu Thr Glu Lys Glu Val Gln Ser Glu Arg Gly Arg Glu Arg 50 55 60 Thr Gln Lys Gly Ala Gly Glu Lys Glu Thr Gly Val Asp Gly Val Thr 65 70 75 80 Gly Glu Gln Leu Leu Ala Leu Thr Lys Gly Glu Pro Glu Ala Ala Glu 85 90 95 Glu Ala Arg Glu Glu Asp Glu Gly Lys Gly Glu Asp Arg Trp Asn Glu 100 105 110 Glu Gly Ala Arg Arg Glu Lys Glu Ala Ala Arg Val Met Ser Thr Pro 115 120 125 Gln Thr Tyr Ala Glu Ala Thr Asp Thr Thr Ala 130 135 65 416 DNA Toxoplasma gondii CDS (1)..(414) 65 ccg gat cgc ggg aga gaa gaa cgt gag gga gaa gaa gag agt gcc gag 48 Pro Asp Arg Gly Arg Glu Glu Arg Glu Gly Glu Glu Glu Ser Ala Glu 1 5 10 15 gct ttg cca gac cat aag cgg ggg cca gga aaa gag ctg gag gaa ggc 96 Ala Leu Pro Asp His Lys Arg Gly Pro Gly Lys Glu Leu Glu Glu Gly 20 25 30 cga gac tcg cag gtc cgt ggt gag gag agc ggg cgc agc tcg ctt tcg 144 Arg Asp Ser Gln Val Arg Gly Glu Glu Ser Gly Arg Ser Ser Leu Ser 35 40 45 cag gag agg gaa agt ttt cgt tct cag cgn gtc tcg gct gag ggt cag 192 Gln Glu Arg Glu Ser Phe Arg Ser Gln Arg Val Ser Ala Glu Gly Gln 50 55 60 gag gtg gag gca gcn tct gtc aag gcg ctt gaa gag gca aag tcg aac 240 Glu Val Glu Ala Ala Ser Val Lys Ala Leu Glu Glu Ala Lys Ser Asn 65 70 75 80 gac aga ccc gac ggc gag agc aac gag ctg cgt cgc ttg tca ccc acc 288 Asp Arg Pro Asp Gly Glu Ser Asn Glu Leu Arg Arg Leu Ser Pro Thr 85 90 95 agc cag aca gag caa gaa ggc tcc gtc gag aaa gaa ggg aca tca gag 336 Ser Gln Thr Glu Gln Glu Gly Ser Val Glu Lys Glu Gly Thr Ser Glu 100 105 110 gcg acg atg aac gac caa gac gag aca ggg aag gaa aaa caa gac caa 384 Ala Thr Met Asn Asp Gln Asp Glu Thr Gly Lys Glu Lys Gln Asp Gln 115 120 125 cga gag gtg cct gtg ccc cgc gct ctt cgc tt 416 Arg Glu Val Pro Val Pro Arg Ala Leu Arg 130 135 66 138 PRT Toxoplasma gondii 66 Pro Asp Arg Gly Arg Glu Glu Arg Glu Gly Glu Glu Glu Ser Ala Glu 1 5 10 15 Ala Leu Pro Asp His Lys Arg Gly Pro Gly Lys Glu Leu Glu Glu Gly 20 25 30 Arg Asp Ser Gln Val Arg Gly Glu Glu Ser Gly Arg Ser Ser Leu Ser 35 40 45 Gln Glu Arg Glu Ser Phe Arg Ser Gln Arg Val Ser Ala Glu Gly Gln 50 55 60 Glu Val Glu Ala Ala Ser Val Lys Ala Leu Glu Glu Ala Lys Ser Asn 65 70 75 80 Asp Arg Pro Asp Gly Glu Ser Asn Glu Leu Arg Arg Leu Ser Pro Thr 85 90 95 Ser Gln Thr Glu Gln Glu Gly Ser Val Glu Lys Glu Gly Thr Ser Glu 100 105 110 Ala Thr Met Asn Asp Gln Asp Glu Thr Gly Lys Glu Lys Gln Asp Gln 115 120 125 Arg Glu Val Pro Val Pro Arg Ala Leu Arg 130 135 67 500 DNA Toxoplasma gondii 67 ccgagaatca tgttacgcca tgtagacagc gtttagggag tgcagacatt ttaatctgga 60 cggagtccaa gtggacgcgg atgtagatat ctgtcgcagc acctccgcag ttgcgctagg 120 gattctgatg ctgctagttt taacatccaa aactctgact tcgcttggtg atctccaggt 180 gcatatacat gcgaaggcaa tcgtgtttgt gagaggcgaa tgtacgaatt tcagtgtctt 240 tgtgtggaag tcaagttccc ctgaaccagc tgcttgtttt attctaccgc taatgtatga 300 agcttagcct cgtgtcctct tcgcccgtac acgagacacg atccaagagt catacaaatt 360 cttgcggcgg tgaggtaatt gtcaacagaa acaaaagtcg cgggtatctg tggtgtctct 420 gcttctgcac ttccaaggac cgccgcaagt tcggcccgat cggctggaac attcagtacg 480 agttcacgac ggaggatccg 500 68 321 DNA Toxoplasma gondii CDS (1)..(219) 68 cgg cgg gac ttg cgg act tcg gtc tgg gac gct cgg gtg tac gta cac 48 Arg Arg Asp Leu Arg Thr Ser Val Trp Asp Ala Arg Val Tyr Val His 1 5 10 15 ctg gcg ggg ggc cag agg cgc tgc aac gag tcg cgg ggg atg gag gaa 96 Leu Ala Gly Gly Gln Arg Arg Cys Asn Glu Ser Arg Gly Met Glu Glu 20 25 30 gcg agg aaa agg agg tgt ctc gcg atg cgg tgc cag tgg act tcg tct 144 Ala Arg Lys Arg Arg Cys Leu Ala Met Arg Cys Gln Trp Thr Ser Ser 35 40 45 gcg cta gat tgg agg gag agc tgg aaa aat gcc gag aca gct tcg cac 192 Ala Leu Asp Trp Arg Glu Ser Trp Lys Asn Ala Glu Thr Ala Ser His 50 55 60 gtc aca ttc ccg acg aaa cgc ccg cca tgaaggaaat cacagacatc 239 Val Thr Phe Pro Thr Lys Arg Pro Pro 65 70 accaaccttc ccgccgtggc taaaggaccg tcctgtgtat gtacagtttt tccaggcgaa 299 agccgagaga cagcgaaacc gg 321 69 73 PRT Toxoplasma gondii 69 Arg Arg Asp Leu Arg Thr Ser Val Trp Asp Ala Arg Val Tyr Val His 1 5 10 15 Leu Ala Gly Gly Gln Arg Arg Cys Asn Glu Ser Arg Gly Met Glu Glu 20 25 30 Ala Arg Lys Arg Arg Cys Leu Ala Met Arg Cys Gln Trp Thr Ser Ser 35 40 45 Ala Leu Asp Trp Arg Glu Ser Trp Lys Asn Ala Glu Thr Ala Ser His 50 55 60 Val Thr Phe Pro Thr Lys Arg Pro Pro 65 70 70 513 DNA Toxoplasma gondii CDS (1)..(513) 70 cgg gat cag gct tct atg cca ctg ccc ccg gcc ccc gaa gac ttt gac 48 Arg Asp Gln Ala Ser Met Pro Leu Pro Pro Ala Pro Glu Asp Phe Asp 1 5 10 15 ctg cct cct atg cca ctg ccc gaa gca ccc gaa gac ttt gac cag gct 96 Leu Pro Pro Met Pro Leu Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala 20 25 30 cct atg cca ctg ccc gag gca ccc gaa gac ttt gac cag gct cct atg 144 Pro Met Pro Leu Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala Pro Met 35 40 45 cca ctg ccc gag gca ccc gaa gac ttt gac cag cct cct atg cca ctg 192 Pro Leu Pro Glu Ala Pro Glu Asp Phe Asp Gln Pro Pro Met Pro Leu 50 55 60 ccc gaa gca ccc gaa gac ttt gac cag gct cct atg cca ctg ccc gaa 240 Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala Pro Met Pro Leu Pro Glu 65 70 75 80 gca ccc gaa gtc ttt gac cag gct cct atg cca ctg ccc gag gca ccc 288 Ala Pro Glu Val Phe Asp Gln Ala Pro Met Pro Leu Pro Glu Ala Pro 85 90 95 gaa gtc ttt gac cag gct cct atg cca ctg ccc gaa gca ccc gaa gac 336 Glu Val Phe Asp Gln Ala Pro Met Pro Leu Pro Glu Ala Pro Glu Asp 100 105 110 ttt gac cag gct cct atg cca ctg ccc gaa gca ccc gaa gtc ttt gac 384 Phe Asp Gln Ala Pro Met Pro Leu Pro Glu Ala Pro Glu Val Phe Asp 115 120 125 cag gct cct atg cca ctg ccc gag gca ccc gaa gac ttt gac cag gct 432 Gln Ala Pro Met Pro Leu Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala 130 135 140 cct atg cca gtg ccc gag gca ccc gaa gac ttt gac cag gct cct gag 480 Pro Met Pro Val Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala Pro Glu 145 150 155 160 cca ctg ccc gag gca gcc gaa gaa ttt gat ccc 513 Pro Leu Pro Glu Ala Ala Glu Glu Phe Asp Pro 165 170 71 171 PRT Toxoplasma gondii 71 Arg Asp Gln Ala Ser Met Pro Leu Pro Pro Ala Pro Glu Asp Phe Asp 1 5 10 15 Leu Pro Pro Met Pro Leu Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala 20 25 30 Pro Met Pro Leu Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala Pro Met 35 40 45 Pro Leu Pro Glu Ala Pro Glu Asp Phe Asp Gln Pro Pro Met Pro Leu 50 55 60 Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala Pro Met Pro Leu Pro Glu 65 70 75 80 Ala Pro Glu Val Phe Asp Gln Ala Pro Met Pro Leu Pro Glu Ala Pro 85 90 95 Glu Val Phe Asp Gln Ala Pro Met Pro Leu Pro Glu Ala Pro Glu Asp 100 105 110 Phe Asp Gln Ala Pro Met Pro Leu Pro Glu Ala Pro Glu Val Phe Asp 115 120 125 Gln Ala Pro Met Pro Leu Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala 130 135 140 Pro Met Pro Val Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala Pro Glu 145 150 155 160 Pro Leu Pro Glu Ala Ala Glu Glu Phe Asp Pro 165 170 72 528 DNA Toxoplasma gondii CDS (1)..(528) 72 cga tct gaa cgt tgt gca acc gtt ggg gac cca ggt aca ggc gtc tcc 48 Arg Ser Glu Arg Cys Ala Thr Val Gly Asp Pro Gly Thr Gly Val Ser 1 5 10 15 aac act gag gcg ggg gga aag cgc cca cac tgg cgt ctc agg cac ctt 96 Asn Thr Glu Ala Gly Gly Lys Arg Pro His Trp Arg Leu Arg His Leu 20 25 30 caa tgc cac agg tat ccg gca tcc ttg gag aca gag ctt gag acg gag 144 Gln Cys His Arg Tyr Pro Ala Ser Leu Glu Thr Glu Leu Glu Thr Glu 35 40 45 aca ctc gca cac aca ccc aga gag ctt gtg gtg aca aat cga agc ttg 192 Thr Leu Ala His Thr Pro Arg Glu Leu Val Val Thr Asn Arg Ser Leu 50 55 60 ggg ttt gtc tcg ctt ctt cgc cag tcg ttc gcg tcg cag tca gaa gca 240 Gly Phe Val Ser Leu Leu Arg Gln Ser Phe Ala Ser Gln Ser Glu Ala 65 70 75 80 gtc aag gcg acc gcg gag acg ccg aca gag aca gag aca gtc ctt gtg 288 Val Lys Ala Thr Ala Glu Thr Pro Thr Glu Thr Glu Thr Val Leu Val 85 90 95 gcg ggc gag cgc aac acc gcg aaa gaa aga gag aga aaa ggg cag gac 336 Ala Gly Glu Arg Asn Thr Ala Lys Glu Arg Glu Arg Lys Gly Gln Asp 100 105 110 gaa gag gtt tcg cag aga gca gcg gag aac aag aga gga cga gtg gag 384 Glu Glu Val Ser Gln Arg Ala Ala Glu Asn Lys Arg Gly Arg Val Glu 115 120 125 gac aca gac tac cgg gag acg gat aag aaa gcc gag aaa gat gag cga 432 Asp Thr Asp Tyr Arg Glu Thr Asp Lys Lys Ala Glu Lys Asp Glu Arg 130 135 140 gaa gag aac ccc cga gga gac aca ggg gag cag aga agc gag aag cac 480 Glu Glu Asn Pro Arg Gly Asp Thr Gly Glu Gln Arg Ser Glu Lys His 145 150 155 160 acg aga gat tta ttg gga cag gag aga gag aac gca tgg gag atc ccg 528 Thr Arg Asp Leu Leu Gly Gln Glu Arg Glu Asn Ala Trp Glu Ile Pro 165 170 175 73 176 PRT Toxoplasma gondii 73 Arg Ser Glu Arg Cys Ala Thr Val Gly Asp Pro Gly Thr Gly Val Ser 1 5 10 15 Asn Thr Glu Ala Gly Gly Lys Arg Pro His Trp Arg Leu Arg His Leu 20 25 30 Gln Cys His Arg Tyr Pro Ala Ser Leu Glu Thr Glu Leu Glu Thr Glu 35 40 45 Thr Leu Ala His Thr Pro Arg Glu Leu Val Val Thr Asn Arg Ser Leu 50 55 60 Gly Phe Val Ser Leu Leu Arg Gln Ser Phe Ala Ser Gln Ser Glu Ala 65 70 75 80 Val Lys Ala Thr Ala Glu Thr Pro Thr Glu Thr Glu Thr Val Leu Val 85 90 95 Ala Gly Glu Arg Asn Thr Ala Lys Glu Arg Glu Arg Lys Gly Gln Asp 100 105 110 Glu Glu Val Ser Gln Arg Ala Ala Glu Asn Lys Arg Gly Arg Val Glu 115 120 125 Asp Thr Asp Tyr Arg Glu Thr Asp Lys Lys Ala Glu Lys Asp Glu Arg 130 135 140 Glu Glu Asn Pro Arg Gly Asp Thr Gly Glu Gln Arg Ser Glu Lys His 145 150 155 160 Thr Arg Asp Leu Leu Gly Gln Glu Arg Glu Asn Ala Trp Glu Ile Pro 165 170 175 74 375 DNA Toxoplasma gondii CDS (1)..(375) 74 ccg gag gag tac aag tgc agc aaa acc acg tac gaa gac agc tgc acc 48 Pro Glu Glu Tyr Lys Cys Ser Lys Thr Thr Tyr Glu Asp Ser Cys Thr 1 5 10 15 gat gtc gct gtc cag gtc ccc gac acc tgc tac cgc act gtc gat cag 96 Asp Val Ala Val Gln Val Pro Asp Thr Cys Tyr Arg Thr Val Asp Gln 20 25 30 aag aag gct tac aag tgc aag aaa acg ctg acg aaa aac caa tgc acg 144 Lys Lys Ala Tyr Lys Cys Lys Lys Thr Leu Thr Lys Asn Gln Cys Thr 35 40 45 aag gtt cca gtc cag gtt cca agc aca tgc acg aag acg gcg atg tca 192 Lys Val Pro Val Gln Val Pro Ser Thr Cys Thr Lys Thr Ala Met Ser 50 55 60 aag gag gcg tac gac tgc tcg aag acc gag ttc cgc acc gag tgc acc 240 Lys Glu Ala Tyr Asp Cys Ser Lys Thr Glu Phe Arg Thr Glu Cys Thr 65 70 75 80 gac gaa gtc gag caa gtc ccg tgc atg ggc aaa gag tgc aag ctg cgc 288 Asp Glu Val Glu Gln Val Pro Cys Met Gly Lys Glu Cys Lys Leu Arg 85 90 95 cag ctg aag aag aag cgc gtc tgc agg cag gtc ccg ttc acc agc aag 336 Gln Leu Lys Lys Lys Arg Val Cys Arg Gln Val Pro Phe Thr Ser Lys 100 105 110 aac gtc tgc tac aaa aat gtg ccc acg gag cag acg tcg 375 Asn Val Cys Tyr Lys Asn Val Pro Thr Glu Gln Thr Ser 115 120 125 75 125 PRT Toxoplasma gondii 75 Pro Glu Glu Tyr Lys Cys Ser Lys Thr Thr Tyr Glu Asp Ser Cys Thr 1 5 10 15 Asp Val Ala Val Gln Val Pro Asp Thr Cys Tyr Arg Thr Val Asp Gln 20 25 30 Lys Lys Ala Tyr Lys Cys Lys Lys Thr Leu Thr Lys Asn Gln Cys Thr 35 40 45 Lys Val Pro Val Gln Val Pro Ser Thr Cys Thr Lys Thr Ala Met Ser 50 55 60 Lys Glu Ala Tyr Asp Cys Ser Lys Thr Glu Phe Arg Thr Glu Cys Thr 65 70 75 80 Asp Glu Val Glu Gln Val Pro Cys Met Gly Lys Glu Cys Lys Leu Arg 85 90 95 Gln Leu Lys Lys Lys Arg Val Cys Arg Gln Val Pro Phe Thr Ser Lys 100 105 110 Asn Val Cys Tyr Lys Asn Val Pro Thr Glu Gln Thr Ser 115 120 125 76 543 DNA Toxoplasma gondii CDS (1)..(267) 76 cga tcc aac agt tta cga ggt aca agg caa cag ccg aac ctc tac gag 48 Arg Ser Asn Ser Leu Arg Gly Thr Arg Gln Gln Pro Asn Leu Tyr Glu 1 5 10 15 cac gtg tcc cca cgg ttc acg ctc tcc cat gga aaa gca aag cga ttc 96 His Val Ser Pro Arg Phe Thr Leu Ser His Gly Lys Ala Lys Arg Phe 20 25 30 ctc cat tat cac cac tgc cac tgc cat tcc agc cta aga atc cta cac 144 Leu His Tyr His His Cys His Cys His Ser Ser Leu Arg Ile Leu His 35 40 45 ttc aaa gac gaa ctt ttg cat cgt ccg tgc gtc tcc cgt ggc caa cac 192 Phe Lys Asp Glu Leu Leu His Arg Pro Cys Val Ser Arg Gly Gln His 50 55 60 cct caa gcc aaa aga gag ggc acc ttc tac act gcc cac gca atc acc 240 Pro Gln Ala Lys Arg Glu Gly Thr Phe Tyr Thr Ala His Ala Ile Thr 65 70 75 80 ctg tgc ggc ggc aca caa aag cga aac tgacacacgc tactgccgtt 287 Leu Cys Gly Gly Thr Gln Lys Arg Asn 85 ccggaaagtg gtctgaaaga aactgacaac agccgcaaag agacatttac ccggtgcctg 347 gcgtggtcaa aaatccggca taatggtttc tgcgcatcct ccattcagcc gcccaacatc 407 tgcggtcgtt cttccgtcga aactatgaca caacgagcct tgtggaacaa aacggttcgt 467 actgacgaca ttgcctgggt cggattcact gcatgtttgc cagggtgcat ttccacggtg 527 ctctgcgtcg atcccg 543 77 89 PRT Toxoplasma gondii 77 Arg Ser Asn Ser Leu Arg Gly Thr Arg Gln Gln Pro Asn Leu Tyr Glu 1 5 10 15 His Val Ser Pro Arg Phe Thr Leu Ser His Gly Lys Ala Lys Arg Phe 20 25 30 Leu His Tyr His His Cys His Cys His Ser Ser Leu Arg Ile Leu His 35 40 45 Phe Lys Asp Glu Leu Leu His Arg Pro Cys Val Ser Arg Gly Gln His 50 55 60 Pro Gln Ala Lys Arg Glu Gly Thr Phe Tyr Thr Ala His Ala Ile Thr 65 70 75 80 Leu Cys Gly Gly Thr Gln Lys Arg Asn 85 78 573 DNA Toxoplasma gondii CDS (1)..(573) 78 ccg gcg tcg tcg agc tcg agg ctg ggc aag ctg gct tac gac gat gca 48 Pro Ala Ser Ser Ser Ser Arg Leu Gly Lys Leu Ala Tyr Asp Asp Ala 1 5 10 15 gga ggt gga cga gga gcg agc tcg cca cca tct tct aag ttg ttt gtt 96 Gly Gly Gly Arg Gly Ala Ser Ser Pro Pro Ser Ser Lys Leu Phe Val 20 25 30 tcc cca gtc aac gac agg tca cgg atg gca gat caa cga aaa cct gca 144 Ser Pro Val Asn Asp Arg Ser Arg Met Ala Asp Gln Arg Lys Pro Ala 35 40 45 ccc gaa caa tcg tcc aat cac gat tcg gaa tgc tgt tgc cta cgc tgt 192 Pro Glu Gln Ser Ser Asn His Asp Ser Glu Cys Cys Cys Leu Arg Cys 50 55 60 ctg agt gag aag acg ctg atg atg gca cag ctc tgc agg cct gca cct 240 Leu Ser Glu Lys Thr Leu Met Met Ala Gln Leu Cys Arg Pro Ala Pro 65 70 75 80 gta acc ctg tct gta aca gag agg aac cta ttt gga gat aat ggc aga 288 Val Thr Leu Ser Val Thr Glu Arg Asn Leu Phe Gly Asp Asn Gly Arg 85 90 95 gac gtc gtt gaa tgg gag ggt tca tgc gga ttt ttt tct gga aat gca 336 Asp Val Val Glu Trp Glu Gly Ser Cys Gly Phe Phe Ser Gly Asn Ala 100 105 110 tcg act agg cca tct ctg cag ttc tcc cct cac cgt gtc atc gat gcc 384 Ser Thr Arg Pro Ser Leu Gln Phe Ser Pro His Arg Val Ile Asp Ala 115 120 125 cca aca gcc aat gac gat atg aga gat tgc aga gca gcc cct gaa gac 432 Pro Thr Ala Asn Asp Asp Met Arg Asp Cys Arg Ala Ala Pro Glu Asp 130 135 140 ggg aca ggt acc tca aag gca aat att cac cgc agt agc aac ata aca 480 Gly Thr Gly Thr Ser Lys Ala Asn Ile His Arg Ser Ser Asn Ile Thr 145 150 155 160 aaa acg aag gaa gag aat ggt aga gat gtg tgt gag gga ctc agg aaa 528 Lys Thr Lys Glu Glu Asn Gly Arg Asp Val Cys Glu Gly Leu Arg Lys 165 170 175 ccg ttg cag gac gat tct gaa gga gtc caa caa cct ctt ccg ccg 573 Pro Leu Gln Asp Asp Ser Glu Gly Val Gln Gln Pro Leu Pro Pro 180 185 190 79 191 PRT Toxoplasma gondii 79 Pro Ala Ser Ser Ser Ser Arg Leu Gly Lys Leu Ala Tyr Asp Asp Ala 1 5 10 15 Gly Gly Gly Arg Gly Ala Ser Ser Pro Pro Ser Ser Lys Leu Phe Val 20 25 30 Ser Pro Val Asn Asp Arg Ser Arg Met Ala Asp Gln Arg Lys Pro Ala 35 40 45 Pro Glu Gln Ser Ser Asn His Asp Ser Glu Cys Cys Cys Leu Arg Cys 50 55 60 Leu Ser Glu Lys Thr Leu Met Met Ala Gln Leu Cys Arg Pro Ala Pro 65 70 75 80 Val Thr Leu Ser Val Thr Glu Arg Asn Leu Phe Gly Asp Asn Gly Arg 85 90 95 Asp Val Val Glu Trp Glu Gly Ser Cys Gly Phe Phe Ser Gly Asn Ala 100 105 110 Ser Thr Arg Pro Ser Leu Gln Phe Ser Pro His Arg Val Ile Asp Ala 115 120 125 Pro Thr Ala Asn Asp Asp Met Arg Asp Cys Arg Ala Ala Pro Glu Asp 130 135 140 Gly Thr Gly Thr Ser Lys Ala Asn Ile His Arg Ser Ser Asn Ile Thr 145 150 155 160 Lys Thr Lys Glu Glu Asn Gly Arg Asp Val Cys Glu Gly Leu Arg Lys 165 170 175 Pro Leu Gln Asp Asp Ser Glu Gly Val Gln Gln Pro Leu Pro Pro 180 185 190 80 1835 DNA Toxoplasma gondii CDS (1)..(1833) 80 cgg atc agt ggg gac cag tac tct tgt ctt caa cga gga gcg gga gga 48 Arg Ile Ser Gly Asp Gln Tyr Ser Cys Leu Gln Arg Gly Ala Gly Gly 1 5 10 15 gac aag gag aca gca acc gag aga gaa gag agg aac aga gaa gat gcg 96 Asp Lys Glu Thr Ala Thr Glu Arg Glu Glu Arg Asn Arg Glu Asp Ala 20 25 30 ccc tcc ttt ctt gaa gga gga ctc gga gat gac gag aca gag aga gcg 144 Pro Ser Phe Leu Glu Gly Gly Leu Gly Asp Asp Glu Thr Glu Arg Ala 35 40 45 aag caa gcg agt gag ttg ccc gcg tct ctt tgc tct ttc gcc gca gca 192 Lys Gln Ala Ser Glu Leu Pro Ala Ser Leu Cys Ser Phe Ala Ala Ala 50 55 60 cgc agg ggc gcg agc cgc gca gag aag aca ggc gca aag ggg gag gaa 240 Arg Arg Gly Ala Ser Arg Ala Glu Lys Thr Gly Ala Lys Gly Glu Glu 65 70 75 80 gcc aga gag aaa gaa gtc agt ttc ggt gaa gac agt ggg cta tcc aga 288 Ala Arg Glu Lys Glu Val Ser Phe Gly Glu Asp Ser Gly Leu Ser Arg 85 90 95 cag gtg gac atg gac agt tcg cag gaa tct gtc aac gaa gga gag ccg 336 Gln Val Asp Met Asp Ser Ser Gln Glu Ser Val Asn Glu Gly Glu Pro 100 105 110 cta cac gac aga gcc gca ggg gag gac gca gaa ggc ggg gga gca gag 384 Leu His Asp Arg Ala Ala Gly Glu Asp Ala Glu Gly Gly Gly Ala Glu 115 120 125 gcg aac gac gga gac aga gag gga gac gag aag gag act cga gac gtc 432 Ala Asn Asp Gly Asp Arg Glu Gly Asp Glu Lys Glu Thr Arg Asp Val 130 135 140 gag gac gaa gga gag acg cgt cgt tct tcc tct ttc gct gaa caa act 480 Glu Asp Glu Gly Glu Thr Arg Arg Ser Ser Ser Phe Ala Glu Gln Thr 145 150 155 160 gga aat gaa aga acc gag atg aga acc aga cat ggg ggt gac gag ggc 528 Gly Asn Glu Arg Thr Glu Met Arg Thr Arg His Gly Gly Asp Glu Gly 165 170 175 tgg acc tcg aag tcg aat cgg ttc gct ttt gcc tgc cct cgg ttt tcc 576 Trp Thr Ser Lys Ser Asn Arg Phe Ala Phe Ala Cys Pro Arg Phe Ser 180 185 190 aaa tct gat gtc tgc tgt tct ccc cag gct cgg ctg tct ttg cct gaa 624 Lys Ser Asp Val Cys Cys Ser Pro Gln Ala Arg Leu Ser Leu Pro Glu 195 200 205 cag tcc cta ggc tcc tct ccg tcg tcg ccc att tct gtc aca aat gat 672 Gln Ser Leu Gly Ser Ser Pro Ser Ser Pro Ile Ser Val Thr Asn Asp 210 215 220 gtc tat gct ctc ttc gat tcg tct gca tct cct ctg cat gcg gga gag 720 Val Tyr Ala Leu Phe Asp Ser Ser Ala Ser Pro Leu His Ala Gly Glu 225 230 235 240 tta tct tct ctt ccc ggc gcg gtc tcg gcc tca gag cgc cta ttg act 768 Leu Ser Ser Leu Pro Gly Ala Val Ser Ala Ser Glu Arg Leu Leu Thr 245 250 255 gct ccg gca gaa ata ggt ccc tcg gcc tcc tca gcc tgc ctc tcc gtt 816 Ala Pro Ala Glu Ile Gly Pro Ser Ala Ser Ser Ala Cys Leu Ser Val 260 265 270 tct tgt ggt cca ggc gaa atg tct ccg aca gcg gat acg acg aga cac 864 Ser Cys Gly Pro Gly Glu Met Ser Pro Thr Ala Asp Thr Thr Arg His 275 280 285 gac gcg gaa gag aga gaa cgc agg aga gcg gag gaa gag aag gag aga 912 Asp Ala Glu Glu Arg Glu Arg Arg Arg Ala Glu Glu Glu Lys Glu Arg 290 295 300 gag aga cag gaa gaa gaa gag aga gaa cgc agg aga gtg gag gaa gag 960 Glu Arg Gln Glu Glu Glu Glu Arg Glu Arg Arg Arg Val Glu Glu Glu 305 310 315 320 aag gag aga gag aga cag gaa gaa gaa gag aga gaa cgc agg aga gtg 1008 Lys Glu Arg Glu Arg Gln Glu Glu Glu Glu Arg Glu Arg Arg Arg Val 325 330 335 gag gaa gag aag gcg aga cag aga gag gaa gat gag aga gaa cgc agg 1056 Glu Glu Glu Lys Ala Arg Gln Arg Glu Glu Asp Glu Arg Glu Arg Arg 340 345 350 aga gtg gag gaa gag aag gcg aga cag aga gag gaa gaa gag aga gaa 1104 Arg Val Glu Glu Glu Lys Ala Arg Gln Arg Glu Glu Glu Glu Arg Glu 355 360 365 cgc agg aga gtg gag gaa gag aag gcg aga cag aga gag gaa gaa gaa 1152 Arg Arg Arg Val Glu Glu Glu Lys Ala Arg Gln Arg Glu Glu Glu Glu 370 375 380 gag aga gaa cgc agg aga gtg gag gaa gag aag gcg aga cag aga gag 1200 Glu Arg Glu Arg Arg Arg Val Glu Glu Glu Lys Ala Arg Gln Arg Glu 385 390 395 400 gaa gaa gaa gag aga gaa cgc agg aga gtg gag gaa gag aag gcg aga 1248 Glu Glu Glu Glu Arg Glu Arg Arg Arg Val Glu Glu Glu Lys Ala Arg 405 410 415 cag aga gag gaa gaa gaa gag aga gaa ggc agg aga gtg gag gaa gag 1296 Gln Arg Glu Glu Glu Glu Glu Arg Glu Gly Arg Arg Val Glu Glu Glu 420 425 430 aag gcg aga cag aga gag gaa gaa gaa gag aga gaa ggc agg aga gtg 1344 Lys Ala Arg Gln Arg Glu Glu Glu Glu Glu Arg Glu Gly Arg Arg Val 435 440 445 gag gaa gag aag gcg aga cag aga gag gaa gaa gag aga gaa cgc agg 1392 Glu Glu Glu Lys Ala Arg Gln Arg Glu Glu Glu Glu Arg Glu Arg Arg 450 455 460 aga gta gag gaa gag aag gag aga gag aga cag gag gaa gag aga gaa 1440 Arg Val Glu Glu Glu Lys Glu Arg Glu Arg Gln Glu Glu Glu Arg Glu 465 470 475 480 cgc agg aga gta gag gaa gag aag gag aga gag aga cag gag gaa gaa 1488 Arg Arg Arg Val Glu Glu Glu Lys Glu Arg Glu Arg Gln Glu Glu Glu 485 490 495 gag aga gaa cgc agg aga gtg gag gaa gag aag gag aga gag aga cag 1536 Glu Arg Glu Arg Arg Arg Val Glu Glu Glu Lys Glu Arg Glu Arg Gln 500 505 510 gaa gaa gaa aag aga gaa cgc agg aga gtg gag gaa gag aag gcg aga 1584 Glu Glu Glu Lys Arg Glu Arg Arg Arg Val Glu Glu Glu Lys Ala Arg 515 520 525 cag aga cag gaa gaa gaa ggg aga gaa aga caa aga gga gag gag aga 1632 Gln Arg Gln Glu Glu Glu Gly Arg Glu Arg Gln Arg Gly Glu Glu Arg 530 535 540 gaa gag aga gag aga gaa ttt caa cag cgc gag cgg gag ctg aag aca 1680 Glu Glu Arg Glu Arg Glu Phe Gln Gln Arg Glu Arg Glu Leu Lys Thr 545 550 555 560 cgg cta gta gag ctt cag aga gag cac gca gag tct gtt gaa acg tgg 1728 Arg Leu Val Glu Leu Gln Arg Glu His Ala Glu Ser Val Glu Thr Trp 565 570 575 atg aag gag caa gga gaa cga gaa agg cac ttg act cag gat tgg gag 1776 Met Lys Glu Gln Gly Glu Arg Glu Arg His Leu Thr Gln Asp Trp Glu 580 585 590 agg aaa ttg cat gcg ttt gaa gag cag agt cgg act gtg ttg ctc caa 1824 Arg Lys Leu His Ala Phe Glu Glu Gln Ser Arg Thr Val Leu Leu Gln 595 600 605 gag aga tcc cg 1835 Glu Arg Ser 610 81 611 PRT Toxoplasma gondii 81 Arg Ile Ser Gly Asp Gln Tyr Ser Cys Leu Gln Arg Gly Ala Gly Gly 1 5 10 15 Asp Lys Glu Thr Ala Thr Glu Arg Glu Glu Arg Asn Arg Glu Asp Ala 20 25 30 Pro Ser Phe Leu Glu Gly Gly Leu Gly Asp Asp Glu Thr Glu Arg Ala 35 40 45 Lys Gln Ala Ser Glu Leu Pro Ala Ser Leu Cys Ser Phe Ala Ala Ala 50 55 60 Arg Arg Gly Ala Ser Arg Ala Glu Lys Thr Gly Ala Lys Gly Glu Glu 65 70 75 80 Ala Arg Glu Lys Glu Val Ser Phe Gly Glu Asp Ser Gly Leu Ser Arg 85 90 95 Gln Val Asp Met Asp Ser Ser Gln Glu Ser Val Asn Glu Gly Glu Pro 100 105 110 Leu His Asp Arg Ala Ala Gly Glu Asp Ala Glu Gly Gly Gly Ala Glu 115 120 125 Ala Asn Asp Gly Asp Arg Glu Gly Asp Glu Lys Glu Thr Arg Asp Val 130 135 140 Glu Asp Glu Gly Glu Thr Arg Arg Ser Ser Ser Phe Ala Glu Gln Thr 145 150 155 160 Gly Asn Glu Arg Thr Glu Met Arg Thr Arg His Gly Gly Asp Glu Gly 165 170 175 Trp Thr Ser Lys Ser Asn Arg Phe Ala Phe Ala Cys Pro Arg Phe Ser 180 185 190 Lys Ser Asp Val Cys Cys Ser Pro Gln Ala Arg Leu Ser Leu Pro Glu 195 200 205 Gln Ser Leu Gly Ser Ser Pro Ser Ser Pro Ile Ser Val Thr Asn Asp 210 215 220 Val Tyr Ala Leu Phe Asp Ser Ser Ala Ser Pro Leu His Ala Gly Glu 225 230 235 240 Leu Ser Ser Leu Pro Gly Ala Val Ser Ala Ser Glu Arg Leu Leu Thr 245 250 255 Ala Pro Ala Glu Ile Gly Pro Ser Ala Ser Ser Ala Cys Leu Ser Val 260 265 270 Ser Cys Gly Pro Gly Glu Met Ser Pro Thr Ala Asp Thr Thr Arg His 275 280 285 Asp Ala Glu Glu Arg Glu Arg Arg Arg Ala Glu Glu Glu Lys Glu Arg 290 295 300 Glu Arg Gln Glu Glu Glu Glu Arg Glu Arg Arg Arg Val Glu Glu Glu 305 310 315 320 Lys Glu Arg Glu Arg Gln Glu Glu Glu Glu Arg Glu Arg Arg Arg Val 325 330 335 Glu Glu Glu Lys Ala Arg Gln Arg Glu Glu Asp Glu Arg Glu Arg Arg 340 345 350 Arg Val Glu Glu Glu Lys Ala Arg Gln Arg Glu Glu Glu Glu Arg Glu 355 360 365 Arg Arg Arg Val Glu Glu Glu Lys Ala Arg Gln Arg Glu Glu Glu Glu 370 375 380 Glu Arg Glu Arg Arg Arg Val Glu Glu Glu Lys Ala Arg Gln Arg Glu 385 390 395 400 Glu Glu Glu Glu Arg Glu Arg Arg Arg Val Glu Glu Glu Lys Ala Arg 405 410 415 Gln Arg Glu Glu Glu Glu Glu Arg Glu Gly Arg Arg Val Glu Glu Glu 420 425 430 Lys Ala Arg Gln Arg Glu Glu Glu Glu Glu Arg Glu Gly Arg Arg Val 435 440 445 Glu Glu Glu Lys Ala Arg Gln Arg Glu Glu Glu Glu Arg Glu Arg Arg 450 455 460 Arg Val Glu Glu Glu Lys Glu Arg Glu Arg Gln Glu Glu Glu Arg Glu 465 470 475 480 Arg Arg Arg Val Glu Glu Glu Lys Glu Arg Glu Arg Gln Glu Glu Glu 485 490 495 Glu Arg Glu Arg Arg Arg Val Glu Glu Glu Lys Glu Arg Glu Arg Gln 500 505 510 Glu Glu Glu Lys Arg Glu Arg Arg Arg Val Glu Glu Glu Lys Ala Arg 515 520 525 Gln Arg Gln Glu Glu Glu Gly Arg Glu Arg Gln Arg Gly Glu Glu Arg 530 535 540 Glu Glu Arg Glu Arg Glu Phe Gln Gln Arg Glu Arg Glu Leu Lys Thr 545 550 555 560 Arg Leu Val Glu Leu Gln Arg Glu His Ala Glu Ser Val Glu Thr Trp 565 570 575 Met Lys Glu Gln Gly Glu Arg Glu Arg His Leu Thr Gln Asp Trp Glu 580 585 590 Arg Lys Leu His Ala Phe Glu Glu Gln Ser Arg Thr Val Leu Leu Gln 595 600 605 Glu Arg Ser 610 82 604 DNA Toxoplasma gondii CDS (1)..(336) 82 ccg atg caa ttt gtc tct cct tcc cct ttt gtg caa tcc gac tcc ccc 48 Pro Met Gln Phe Val Ser Pro Ser Pro Phe Val Gln Ser Asp Ser Pro 1 5 10 15 tct tcg ccc ttc gca caa tcg gct tca cct cct cct tcc gag tac caa 96 Ser Ser Pro Phe Ala Gln Ser Ala Ser Pro Pro Pro Ser Glu Tyr Gln 20 25 30 gac tct ctt tcc ctt cct ttg gca gaa tcc gtc tcg tcg ctt cct ttg 144 Asp Ser Leu Ser Leu Pro Leu Ala Glu Ser Val Ser Ser Leu Pro Leu 35 40 45 gcg aaa cag gct tct cct ctt cac ttg aca caa cac cct tct ccc ctt 192 Ala Lys Gln Ala Ser Pro Leu His Leu Thr Gln His Pro Ser Pro Leu 50 55 60 cta tgg aca cag cgg gcc tct cca tct cct ttc ttg gtt caa cgg gat 240 Leu Trp Thr Gln Arg Ala Ser Pro Ser Pro Phe Leu Val Gln Arg Asp 65 70 75 80 tcg tca cct cct tct gcg tca atg cgg ctt tct gct cgt cct ttg gca 288 Ser Ser Pro Pro Ser Ala Ser Met Arg Leu Ser Ala Arg Pro Leu Ala 85 90 95 aaa cat gtc tct ccc ctt ctc cgg gca aaa cag gct tct cct ttt cca 336 Lys His Val Ser Pro Leu Leu Arg Ala Lys Gln Ala Ser Pro Phe Pro 100 105 110 tagaaccagc agcgggcctc tccatctcct ttcttggtcc accgggtttc gttctccttt 396 catccgtcaa tgcaggtttc atctcgtcct ttggggaaac atgtccctcc ccttctccgg 456 gcaaaacagg cttctccttt tccatagaac cagcagcggg cctctccatc tccgttggtg 516 gtccaccggg tttcgttctc ttttcatctg tcaatgcagg tttcgtctcg tgctttggca 576 aaacatgtcc ctccccttct ccggggtg 604 83 112 PRT Toxoplasma gondii 83 Pro Met Gln Phe Val Ser Pro Ser Pro Phe Val Gln Ser Asp Ser Pro 1 5 10 15 Ser Ser Pro Phe Ala Gln Ser Ala Ser Pro Pro Pro Ser Glu Tyr Gln 20 25 30 Asp Ser Leu Ser Leu Pro Leu Ala Glu Ser Val Ser Ser Leu Pro Leu 35 40 45 Ala Lys Gln Ala Ser Pro Leu His Leu Thr Gln His Pro Ser Pro Leu 50 55 60 Leu Trp Thr Gln Arg Ala Ser Pro Ser Pro Phe Leu Val Gln Arg Asp 65 70 75 80 Ser Ser Pro Pro Ser Ala Ser Met Arg Leu Ser Ala Arg Pro Leu Ala 85 90 95 Lys His Val Ser Pro Leu Leu Arg Ala Lys Gln Ala Ser Pro Phe Pro 100 105 110 84 549 DNA Toxoplasma gondii 84 ggcctttcca tcgccattct tggtccaccg ggttccgtca tctcttcctc cgtcaaggca 60 ggtttgtctc ggccttgggc aaaaaatgtc cttccccttc tccgggcaac acaagcttgt 120 ccttttccat agaaccagca gcgggctttt catctcccgt tggtggtcca ccgggtttcg 180 ttctcttttc atccgtcaat gcaggtttcg tctcgtcctt aggcaaaaca tgtctctccc 240 cttctccggg caaaacaagc ttgtcctttc ccatagaacc agcagcgggc ctctccatcg 300 ccattcttgg tccaccgggt ttcgttctct tttcatccgt caatgcaggt ttcgtctcgt 360 cctttggcaa aacatgtctc tccccttctc cgggcaaaac aggcttctcc ttttccatag 420 aaccagcagc gggcctctcc atctcctttc ttggtccacc gggtttcgtt ctcttttcat 480 ccgtcaatgc aggtttcgtc tcgtccttag gcaaaacatg tctctcccct tctccgggca 540 acacaagcg 549 85 270 DNA Toxoplasma gondii CDS (1)..(270) 85 cgg acg gat gaa cac tgg tgc atc atg aag gat att ggc tac aag ggc 48 Arg Thr Asp Glu His Trp Cys Ile Met Lys Asp Ile Gly Tyr Lys Gly 1 5 10 15 aca gac tcg aag tca aca aaa gca aac tca gcg gca gag tgc cag cag 96 Thr Asp Ser Lys Ser Thr Lys Ala Asn Ser Ala Ala Glu Cys Gln Gln 20 25 30 atg tgc ctc aac gat gag agg tgt gac ttt ttc acg tgg caa cag gcg 144 Met Cys Leu Asn Asp Glu Arg Cys Asp Phe Phe Thr Trp Gln Gln Ala 35 40 45 ggc aag cat tgt tgg ttt aag gct ggg gcg tcc act gcc tca aca aaa 192 Gly Lys His Cys Trp Phe Lys Ala Gly Ala Ser Thr Ala Ser Thr Lys 50 55 60 tac aat cgg gct ggc gac tat tct gca cca aaa cac tgc ggc ctg ccg 240 Tyr Asn Arg Ala Gly Asp Tyr Ser Ala Pro Lys His Cys Gly Leu Pro 65 70 75 80 acc aca tgt gtc aag gag cgg acc aag tcg 270 Thr Thr Cys Val Lys Glu Arg Thr Lys Ser 85 90 86 90 PRT Toxoplasma gondii 86 Arg Thr Asp Glu His Trp Cys Ile Met Lys Asp Ile Gly Tyr Lys Gly 1 5 10 15 Thr Asp Ser Lys Ser Thr Lys Ala Asn Ser Ala Ala Glu Cys Gln Gln 20 25 30 Met Cys Leu Asn Asp Glu Arg Cys Asp Phe Phe Thr Trp Gln Gln Ala 35 40 45 Gly Lys His Cys Trp Phe Lys Ala Gly Ala Ser Thr Ala Ser Thr Lys 50 55 60 Tyr Asn Arg Ala Gly Asp Tyr Ser Ala Pro Lys His Cys Gly Leu Pro 65 70 75 80 Thr Thr Cys Val Lys Glu Arg Thr Lys Ser 85 90 87 306 DNA Toxoplasma gondii CDS (1)..(306) 87 cgg cgg caa caa atg ggc cct gtt cga gcc cct gac ctc caa ttc aac 48 Arg Arg Gln Gln Met Gly Pro Val Arg Ala Pro Asp Leu Gln Phe Asn 1 5 10 15 cag tcg cca ctg ctc ccc cac aac ctc ggc cct gcc cac gtt ccc atg 96 Gln Ser Pro Leu Leu Pro His Asn Leu Gly Pro Ala His Val Pro Met 20 25 30 gga ggt ctc ccg tcg cat cct cat atc tcg gac ttt cat aac tca tcg 144 Gly Gly Leu Pro Ser His Pro His Ile Ser Asp Phe His Asn Ser Ser 35 40 45 gag tcg cgc ccg caa cat ccg ctg ctt gcc agc ggg ctc gca tcg aga 192 Glu Ser Arg Pro Gln His Pro Leu Leu Ala Ser Gly Leu Ala Ser Arg 50 55 60 ctc gga cag ggc ctg acg ccc cag gag aga cag ttc gtg ctc tct caa 240 Leu Gly Gln Gly Leu Thr Pro Gln Glu Arg Gln Phe Val Leu Ser Gln 65 70 75 80 cag tct ggc gga tcg acc tcg ttc ctg ctg cct gcg ttg ccg tct ctc 288 Gln Ser Gly Gly Ser Thr Ser Phe Leu Leu Pro Ala Leu Pro Ser Leu 85 90 95 tca gag aac ctc tcc gcg 306 Ser Glu Asn Leu Ser Ala 100 88 102 PRT Toxoplasma gondii 88 Arg Arg Gln Gln Met Gly Pro Val Arg Ala Pro Asp Leu Gln Phe Asn 1 5 10 15 Gln Ser Pro Leu Leu Pro His Asn Leu Gly Pro Ala His Val Pro Met 20 25 30 Gly Gly Leu Pro Ser His Pro His Ile Ser Asp Phe His Asn Ser Ser 35 40 45 Glu Ser Arg Pro Gln His Pro Leu Leu Ala Ser Gly Leu Ala Ser Arg 50 55 60 Leu Gly Gln Gly Leu Thr Pro Gln Glu Arg Gln Phe Val Leu Ser Gln 65 70 75 80 Gln Ser Gly Gly Ser Thr Ser Phe Leu Leu Pro Ala Leu Pro Ser Leu 85 90 95 Ser Glu Asn Leu Ser Ala 100 89 804 DNA Toxoplasma gondii CDS (1)..(804) 89 cgc gga ggc att tca gtt ccc aca ctt tcc atc atg aat cag agc acc 48 Arg Gly Gly Ile Ser Val Pro Thr Leu Ser Ile Met Asn Gln Ser Thr 1 5 10 15 att gtt gcg acg tct gtg gtc gct ccg cag agc gca gtc tca ctt tcg 96 Ile Val Ala Thr Ser Val Val Ala Pro Gln Ser Ala Val Ser Leu Ser 20 25 30 agg gcc cct agc cga cca ggg cct agc gag agt ttc ggt aaa cag caa 144 Arg Ala Pro Ser Arg Pro Gly Pro Ser Glu Ser Phe Gly Lys Gln Gln 35 40 45 gaa agt cgt cca ggt gtt tcg ggt gct ggc ctc gct gaa agc aaa cgc 192 Glu Ser Arg Pro Gly Val Ser Gly Ala Gly Leu Ala Glu Ser Lys Arg 50 55 60 gtg ccc agc ctt act cag ccg tct ctg gaa cgg tcc gta acc ata tca 240 Val Pro Ser Leu Thr Gln Pro Ser Leu Glu Arg Ser Val Thr Ile Ser 65 70 75 80 cga cgc aaa att gat gcg gtg ggc atg tca ctc gtg ccg aag tta gac 288 Arg Arg Lys Ile Asp Ala Val Gly Met Ser Leu Val Pro Lys Leu Asp 85 90 95 agg aca acg act tct ctt gca gcg aag gag gag aaa ttc agt tct atc 336 Arg Thr Thr Thr Ser Leu Ala Ala Lys Glu Glu Lys Phe Ser Ser Ile 100 105 110 gac aag ata gtc tca aag cca acc cat tct ttt ggg gag agt tcc aaa 384 Asp Lys Ile Val Ser Lys Pro Thr His Ser Phe Gly Glu Ser Ser Lys 115 120 125 tta cca gcg ggt ata atg aaa gcg aaa tca atg ttt ccg tca caa acc 432 Leu Pro Ala Gly Ile Met Lys Ala Lys Ser Met Phe Pro Ser Gln Thr 130 135 140 ctt tcc gca ccg tgg aac gct cct gct cgt tgc gct cgg aaa gac agc 480 Leu Ser Ala Pro Trp Asn Ala Pro Ala Arg Cys Ala Arg Lys Asp Ser 145 150 155 160 ttc ggg acg aag gcc tgg atc gaa aaa ctg caa aga gaa acc aca gac 528 Phe Gly Thr Lys Ala Trp Ile Glu Lys Leu Gln Arg Glu Thr Thr Asp 165 170 175 acc tcg cag cct cca ctt gag cgt caa aag tcg cag cgc ctc gcg caa 576 Thr Ser Gln Pro Pro Leu Glu Arg Gln Lys Ser Gln Arg Leu Ala Gln 180 185 190 acc gag cct gtg cag aaa ctc aag aca tcc tgg ttg gag cct cct caa 624 Thr Glu Pro Val Gln Lys Leu Lys Thr Ser Trp Leu Glu Pro Pro Gln 195 200 205 gag gtc gaa agt gga cat gga gtc gct gaa ggc gac gat ctc agc gtt 672 Glu Val Glu Ser Gly His Gly Val Ala Glu Gly Asp Asp Leu Ser Val 210 215 220 gca gca gcc gag tat cac gtc cca gaa acg gaa gat gga aaa ccc agc 720 Ala Ala Ala Glu Tyr His Val Pro Glu Thr Glu Asp Gly Lys Pro Ser 225 230 235 240 ttc aaa cct agc gac ccc cgc gtg tgg aat cgc gag tgg atc cac cga 768 Phe Lys Pro Ser Asp Pro Arg Val Trp Asn Arg Glu Trp Ile His Arg 245 250 255 agg ata cat aac ccc gtc ctc agt cgc tcg aac cgg 804 Arg Ile His Asn Pro Val Leu Ser Arg Ser Asn Arg 260 265 90 268 PRT Toxoplasma gondii 90 Arg Gly Gly Ile Ser Val Pro Thr Leu Ser Ile Met Asn Gln Ser Thr 1 5 10 15 Ile Val Ala Thr Ser Val Val Ala Pro Gln Ser Ala Val Ser Leu Ser 20 25 30 Arg Ala Pro Ser Arg Pro Gly Pro Ser Glu Ser Phe Gly Lys Gln Gln 35 40 45 Glu Ser Arg Pro Gly Val Ser Gly Ala Gly Leu Ala Glu Ser Lys Arg 50 55 60 Val Pro Ser Leu Thr Gln Pro Ser Leu Glu Arg Ser Val Thr Ile Ser 65 70 75 80 Arg Arg Lys Ile Asp Ala Val Gly Met Ser Leu Val Pro Lys Leu Asp 85 90 95 Arg Thr Thr Thr Ser Leu Ala Ala Lys Glu Glu Lys Phe Ser Ser Ile 100 105 110 Asp Lys Ile Val Ser Lys Pro Thr His Ser Phe Gly Glu Ser Ser Lys 115 120 125 Leu Pro Ala Gly Ile Met Lys Ala Lys Ser Met Phe Pro Ser Gln Thr 130 135 140 Leu Ser Ala Pro Trp Asn Ala Pro Ala Arg Cys Ala Arg Lys Asp Ser 145 150 155 160 Phe Gly Thr Lys Ala Trp Ile Glu Lys Leu Gln Arg Glu Thr Thr Asp 165 170 175 Thr Ser Gln Pro Pro Leu Glu Arg Gln Lys Ser Gln Arg Leu Ala Gln 180 185 190 Thr Glu Pro Val Gln Lys Leu Lys Thr Ser Trp Leu Glu Pro Pro Gln 195 200 205 Glu Val Glu Ser Gly His Gly Val Ala Glu Gly Asp Asp Leu Ser Val 210 215 220 Ala Ala Ala Glu Tyr His Val Pro Glu Thr Glu Asp Gly Lys Pro Ser 225 230 235 240 Phe Lys Pro Ser Asp Pro Arg Val Trp Asn Arg Glu Trp Ile His Arg 245 250 255 Arg Ile His Asn Pro Val Leu Ser Arg Ser Asn Arg 260 265 91 867 DNA Toxoplasma gondii CDS (1)..(867) 91 cgg gat cca gct ggc aag gca gta aag aag gca gcc aca ggg ata cca 48 Arg Asp Pro Ala Gly Lys Ala Val Lys Lys Ala Ala Thr Gly Ile Pro 1 5 10 15 aag cct gca gct cca ggt ggc aag gca gtc aag gtg act cct gtc gcg 96 Lys Pro Ala Ala Pro Gly Gly Lys Ala Val Lys Val Thr Pro Val Ala 20 25 30 cga aaa cct gtt gca cca aag gca gca gct cca gac ggc aag gcg gtc 144 Arg Lys Pro Val Ala Pro Lys Ala Ala Ala Pro Asp Gly Lys Ala Val 35 40 45 aag aag gca acc gta gtc gtg cca aag cct gca gct ccc agt ggc aag 192 Lys Lys Ala Thr Val Val Val Pro Lys Pro Ala Ala Pro Ser Gly Lys 50 55 60 gca gtg aag aag ccg gtt gtc agc gtg cca aag cct gca aca ctc ggt 240 Ala Val Lys Lys Pro Val Val Ser Val Pro Lys Pro Ala Thr Leu Gly 65 70 75 80 ggc aag gca gtg aag aag cca gct gcc ggc gtg cca aag ccc gca gct 288 Gly Lys Ala Val Lys Lys Pro Ala Ala Gly Val Pro Lys Pro Ala Ala 85 90 95 ccc gat ggc aag gcg gtg aga aag cca gtt gtc ggc gtg cca aag ccc 336 Pro Asp Gly Lys Ala Val Arg Lys Pro Val Val Gly Val Pro Lys Pro 100 105 110 gca gct ccc gat ggt aag gcg gcg aaa aag cca gcg tcc ggc gtg cca 384 Ala Ala Pro Asp Gly Lys Ala Ala Lys Lys Pro Ala Ser Gly Val Pro 115 120 125 aag cct gcg gat cca gct ggc aag gca gta aag aag gca gcc aca ggg 432 Lys Pro Ala Asp Pro Ala Gly Lys Ala Val Lys Lys Ala Ala Thr Gly 130 135 140 ata cca aag cct gca gct cca ggt ggc aag gca atc aag gtg act cct 480 Ile Pro Lys Pro Ala Ala Pro Gly Gly Lys Ala Ile Lys Val Thr Pro 145 150 155 160 gtc gcg cga aaa cct gtt gca cca aag gca gca gct cca gac ggc aag 528 Val Ala Arg Lys Pro Val Ala Pro Lys Ala Ala Ala Pro Asp Gly Lys 165 170 175 gca gtc aag aag gca acc gta gtc gtg cca aag cct gca gct ccc agt 576 Ala Val Lys Lys Ala Thr Val Val Val Pro Lys Pro Ala Ala Pro Ser 180 185 190 ggc aag gca gtg aag aag cca gtt gtc agc gtg cca aag cct gca acg 624 Gly Lys Ala Val Lys Lys Pro Val Val Ser Val Pro Lys Pro Ala Thr 195 200 205 ctc gat ggc aag gcg gtg aga aag cca gtt gtc ggc gtg cca aag ccc 672 Leu Asp Gly Lys Ala Val Arg Lys Pro Val Val Gly Val Pro Lys Pro 210 215 220 gca gct ccc gat ggt aag gcg gtg aaa aag cca gtt gtc ggc gtg cca 720 Ala Ala Pro Asp Gly Lys Ala Val Lys Lys Pro Val Val Gly Val Pro 225 230 235 240 aag cct gca gct cca gat gac acg gga atc aac aag gcg acc ctt gtc 768 Lys Pro Ala Ala Pro Asp Asp Thr Gly Ile Asn Lys Ala Thr Leu Val 245 250 255 acg cgg aaa cct gag gct cca gac gtg aag gta gtc aag aag gca acc 816 Thr Arg Lys Pro Glu Ala Pro Asp Val Lys Val Val Lys Lys Ala Thr 260 265 270 gta gtt gtg cca aaa cct gaa gcg cca gat ata aag gta atg acg gat 864 Val Val Val Pro Lys Pro Glu Ala Pro Asp Ile Lys Val Met Thr Asp 275 280 285 ccg 867 Pro 92 289 PRT Toxoplasma gondii 92 Arg Asp Pro Ala Gly Lys Ala Val Lys Lys Ala Ala Thr Gly Ile Pro 1 5 10 15 Lys Pro Ala Ala Pro Gly Gly Lys Ala Val Lys Val Thr Pro Val Ala 20 25 30 Arg Lys Pro Val Ala Pro Lys Ala Ala Ala Pro Asp Gly Lys Ala Val 35 40 45 Lys Lys Ala Thr Val Val Val Pro Lys Pro Ala Ala Pro Ser Gly Lys 50 55 60 Ala Val Lys Lys Pro Val Val Ser Val Pro Lys Pro Ala Thr Leu Gly 65 70 75 80 Gly Lys Ala Val Lys Lys Pro Ala Ala Gly Val Pro Lys Pro Ala Ala 85 90 95 Pro Asp Gly Lys Ala Val Arg Lys Pro Val Val Gly Val Pro Lys Pro 100 105 110 Ala Ala Pro Asp Gly Lys Ala Ala Lys Lys Pro Ala Ser Gly Val Pro 115 120 125 Lys Pro Ala Asp Pro Ala Gly Lys Ala Val Lys Lys Ala Ala Thr Gly 130 135 140 Ile Pro Lys Pro Ala Ala Pro Gly Gly Lys Ala Ile Lys Val Thr Pro 145 150 155 160 Val Ala Arg Lys Pro Val Ala Pro Lys Ala Ala Ala Pro Asp Gly Lys 165 170 175 Ala Val Lys Lys Ala Thr Val Val Val Pro Lys Pro Ala Ala Pro Ser 180 185 190 Gly Lys Ala Val Lys Lys Pro Val Val Ser Val Pro Lys Pro Ala Thr 195 200 205 Leu Asp Gly Lys Ala Val Arg Lys Pro Val Val Gly Val Pro Lys Pro 210 215 220 Ala Ala Pro Asp Gly Lys Ala Val Lys Lys Pro Val Val Gly Val Pro 225 230 235 240 Lys Pro Ala Ala Pro Asp Asp Thr Gly Ile Asn Lys Ala Thr Leu Val 245 250 255 Thr Arg Lys Pro Glu Ala Pro Asp Val Lys Val Val Lys Lys Ala Thr 260 265 270 Val Val Val Pro Lys Pro Glu Ala Pro Asp Ile Lys Val Met Thr Asp 275 280 285 Pro 93 1434 DNA Toxoplasma gondii CDS (1)..(492) 93 cgg ctt gtg ttg ccc gga gaa ggg gag aga cat gtt ttg cca aag gac 48 Arg Leu Val Leu Pro Gly Glu Gly Glu Arg His Val Leu Pro Lys Asp 1 5 10 15 gag acg aaa cct gca ttg acg gat gaa aag aga acg aaa ccc ggt gga 96 Glu Thr Lys Pro Ala Leu Thr Asp Glu Lys Arg Thr Lys Pro Gly Gly 20 25 30 cca agg aag gag atg gag agg ccc gct gct ggt tct atg gaa aag gac 144 Pro Arg Lys Glu Met Glu Arg Pro Ala Ala Gly Ser Met Glu Lys Asp 35 40 45 aag ctt gtt ttg ccc gga gaa ggg gag aga cat gtt ttg cca aag gac 192 Lys Leu Val Leu Pro Gly Glu Gly Glu Arg His Val Leu Pro Lys Asp 50 55 60 gag acg aaa cct gca ttg acg gag gaa aag aga acg aaa ccc ggt gga 240 Glu Thr Lys Pro Ala Leu Thr Glu Glu Lys Arg Thr Lys Pro Gly Gly 65 70 75 80 cca cga acg gag atg gag agg ccc gct gct ggt tct atg gaa aag gac 288 Pro Arg Thr Glu Met Glu Arg Pro Ala Ala Gly Ser Met Glu Lys Asp 85 90 95 aag cct ggt ttg ccc gga gaa ggg gag aga cat gtt ttg cca aag gac 336 Lys Pro Gly Leu Pro Gly Glu Gly Glu Arg His Val Leu Pro Lys Asp 100 105 110 gag acg aaa cct gca ttg acg gag gaa aag aga acg aac ctg gcg gac 384 Glu Thr Lys Pro Ala Leu Thr Glu Glu Lys Arg Thr Asn Leu Ala Asp 115 120 125 caa gaa agg aga tgg aga gcc cgc tgc tgg ttc ttg gaa aag gag aac 432 Gln Glu Arg Arg Trp Arg Ala Arg Cys Trp Phe Leu Glu Lys Glu Asn 130 135 140 ctg ttt ggc ccg gag aag ggg aga gac acg ctt cgc caa agg acg aga 480 Leu Phe Gly Pro Glu Lys Gly Arg Asp Thr Leu Arg Gln Arg Thr Arg 145 150 155 160 cga aag ccg cat tgacgcaaaa ggaggtgacg aatcccgttg aaccaagaaa 532 Arg Lys Pro His ggcgatggag aggcccgctg ctggttctat ggaaaaggaa aacctgtttc cccggagaag 592 gggagggaca tgttttgcca aagcacagac gaaacctgca ttgacagatg aaaagagaac 652 gaaacccggt ggaccaccaa cggagatgga gaggcccgct gctggtttta tggaaaagga 712 gaagcctgtt ttgcccggag aaggggaggg acatgtttcc ccaaaggacg agatgaaacc 772 tgcattgacg gatgaaaaga gaacgaaacc cggtggacca agaaaggaga tggagaggcc 832 cgctgctggt tttatggaaa aggagaagcc tgttttgccc ggagaagggg agagacatgt 892 tttgccaaag gacgagcaga aagccgcatt gacgcagaag gaggtgacga atcccgttga 952 accaagaaag gagatggaga ggcccgctgt gcccatagaa ggggagaagg gtgttgtgtc 1012 aagtgaagag gagaagcctg tttcgccaaa ggaagcgacg agacggattt tgccaaagga 1072 agggaaagag atttggtact cggaaggagg aggtgaagcc gattgtgcga agggcaaaga 1132 gggggagacg gattgcacaa aaggggaagg agaaacaaat tgcatcgaag gaggggaaga 1192 aacccgctgt accaaaggaa ggtgaggaaa gacccgctga accaacggaa ggcgaggaaa 1252 ggcccgttgg gccaaaggaa ggcgaggaaa gacccgttgt gccggacgta gacaaggaga 1312 aacctgttgt gcctgaagga gacaaggaga aacctgttgt gccggaagga gacaaggatc 1372 accctgcttc tgccagagca ggatgaggag aaacacgcta catgggagaa agaaatgatc 1432 cg 1434 94 164 PRT Toxoplasma gondii 94 Arg Leu Val Leu Pro Gly Glu Gly Glu Arg His Val Leu Pro Lys Asp 1 5 10 15 Glu Thr Lys Pro Ala Leu Thr Asp Glu Lys Arg Thr Lys Pro Gly Gly 20 25 30 Pro Arg Lys Glu Met Glu Arg Pro Ala Ala Gly Ser Met Glu Lys Asp 35 40 45 Lys Leu Val Leu Pro Gly Glu Gly Glu Arg His Val Leu Pro Lys Asp 50 55 60 Glu Thr Lys Pro Ala Leu Thr Glu Glu Lys Arg Thr Lys Pro Gly Gly 65 70 75 80 Pro Arg Thr Glu Met Glu Arg Pro Ala Ala Gly Ser Met Glu Lys Asp 85 90 95 Lys Pro Gly Leu Pro Gly Glu Gly Glu Arg His Val Leu Pro Lys Asp 100 105 110 Glu Thr Lys Pro Ala Leu Thr Glu Glu Lys Arg Thr Asn Leu Ala Asp 115 120 125 Gln Glu Arg Arg Trp Arg Ala Arg Cys Trp Phe Leu Glu Lys Glu Asn 130 135 140 Leu Phe Gly Pro Glu Lys Gly Arg Asp Thr Leu Arg Gln Arg Thr Arg 145 150 155 160 Arg Lys Pro His 95 680 DNA Toxoplasma gondii CDS (1)..(678) 95 cga cca aga gca ggg agg gag cag cct gct gtt ccg cgg cag gaa gaa 48 Arg Pro Arg Ala Gly Arg Glu Gln Pro Ala Val Pro Arg Gln Glu Glu 1 5 10 15 cag aaa ctt gtt ttg caa aag aca gag agg aaa cca gtt ttg cca gag 96 Gln Lys Leu Val Leu Gln Lys Thr Glu Arg Lys Pro Val Leu Pro Glu 20 25 30 gaa gac cag aaa ccg gtt tta cca gaa aca ggg gcg aaa cat gtt tta 144 Glu Asp Gln Lys Pro Val Leu Pro Glu Thr Gly Ala Lys His Val Leu 35 40 45 ccg gaa ata gcg acc gaa tcc act ttg acg cag aaa gag ctg aca aaa 192 Pro Glu Ile Ala Thr Glu Ser Thr Leu Thr Gln Lys Glu Leu Thr Lys 50 55 60 ccc gtt gaa aca aga cag gac atg agg ggg acc gct ggt tct atg gac 240 Pro Val Glu Thr Arg Gln Asp Met Arg Gly Thr Ala Gly Ser Met Asp 65 70 75 80 gag aag aag cct gtt ttg ccc gga gaa tgg gag aga cat gtc ttg cca 288 Glu Lys Lys Pro Val Leu Pro Gly Glu Trp Glu Arg His Val Leu Pro 85 90 95 aaa gac gag acg aaa cct gca ttg acg gag gaa aag aga acg aaa ccc 336 Lys Asp Glu Thr Lys Pro Ala Leu Thr Glu Glu Lys Arg Thr Lys Pro 100 105 110 gtt gaa cca aga aag gag atg gag agg ccc gct cgc ccc atg gaa gag 384 Val Glu Pro Arg Lys Glu Met Glu Arg Pro Ala Arg Pro Met Glu Glu 115 120 125 gag aag cct gtt tta ccc gga gaa ggg gag aga cat gtt ttg cca aag 432 Glu Lys Pro Val Leu Pro Gly Glu Gly Glu Arg His Val Leu Pro Lys 130 135 140 gac ggg atg aaa cct gca ttg acg gat gaa aag aga acg aaa ccc ggt 480 Asp Gly Met Lys Pro Ala Leu Thr Asp Glu Lys Arg Thr Lys Pro Gly 145 150 155 160 gga cca agg aag gag atg gag agg ccc gct gct ggt tct atg gaa aag 528 Gly Pro Arg Lys Glu Met Glu Arg Pro Ala Ala Gly Ser Met Glu Lys 165 170 175 gac aag ctt gtg ttg ccc gga gaa ggg gag aga cat gtt ttg cct aag 576 Asp Lys Leu Val Leu Pro Gly Glu Gly Glu Arg His Val Leu Pro Lys 180 185 190 gac gag acg aaa cct gca ttg acg gat gaa aag aga acg aaa ccc ggt 624 Asp Glu Thr Lys Pro Ala Leu Thr Asp Glu Lys Arg Thr Lys Pro Gly 195 200 205 gga cca aga aag gcg atg gag agg ccc gct gct ggt tct atg gaa aag 672 Gly Pro Arg Lys Ala Met Glu Arg Pro Ala Ala Gly Ser Met Glu Lys 210 215 220 gac aag cg 680 Asp Lys 225 96 226 PRT Toxoplasma gondii 96 Arg Pro Arg Ala Gly Arg Glu Gln Pro Ala Val Pro Arg Gln Glu Glu 1 5 10 15 Gln Lys Leu Val Leu Gln Lys Thr Glu Arg Lys Pro Val Leu Pro Glu 20 25 30 Glu Asp Gln Lys Pro Val Leu Pro Glu Thr Gly Ala Lys His Val Leu 35 40 45 Pro Glu Ile Ala Thr Glu Ser Thr Leu Thr Gln Lys Glu Leu Thr Lys 50 55 60 Pro Val Glu Thr Arg Gln Asp Met Arg Gly Thr Ala Gly Ser Met Asp 65 70 75 80 Glu Lys Lys Pro Val Leu Pro Gly Glu Trp Glu Arg His Val Leu Pro 85 90 95 Lys Asp Glu Thr Lys Pro Ala Leu Thr Glu Glu Lys Arg Thr Lys Pro 100 105 110 Val Glu Pro Arg Lys Glu Met Glu Arg Pro Ala Arg Pro Met Glu Glu 115 120 125 Glu Lys Pro Val Leu Pro Gly Glu Gly Glu Arg His Val Leu Pro Lys 130 135 140 Asp Gly Met Lys Pro Ala Leu Thr Asp Glu Lys Arg Thr Lys Pro Gly 145 150 155 160 Gly Pro Arg Lys Glu Met Glu Arg Pro Ala Ala Gly Ser Met Glu Lys 165 170 175 Asp Lys Leu Val Leu Pro Gly Glu Gly Glu Arg His Val Leu Pro Lys 180 185 190 Asp Glu Thr Lys Pro Ala Leu Thr Asp Glu Lys Arg Thr Lys Pro Gly 195 200 205 Gly Pro Arg Lys Ala Met Glu Arg Pro Ala Ala Gly Ser Met Glu Lys 210 215 220 Asp Lys 225 97 296 DNA Toxoplasma gondii CDS (1)..(294) 97 ccg gtc gac gtg gac gac ccc cgt ggc tgt tcg cag caa agc gga gac 48 Pro Val Asp Val Asp Asp Pro Arg Gly Cys Ser Gln Gln Ser Gly Asp 1 5 10 15 acc aga gac agc agc agt ccc gcc aca cct ggt ggt cgg ccg gct ggt 96 Thr Arg Asp Ser Ser Ser Pro Ala Thr Pro Gly Gly Arg Pro Ala Gly 20 25 30 ggg gca gga ggt gca gcg aca agc ccg aag gga cag gcc ttt gcc ccg 144 Gly Ala Gly Gly Ala Ala Thr Ser Pro Lys Gly Gln Ala Phe Ala Pro 35 40 45 cgg ggc ggt gaa ggg gag ata aag ccc cag gag aca gga aac agt gga 192 Arg Gly Gly Glu Gly Glu Ile Lys Pro Gln Glu Thr Gly Asn Ser Gly 50 55 60 gac agc aag gcg gag gga aag gaa gca agt gga gac gcg aac act tcg 240 Asp Ser Lys Ala Glu Gly Lys Glu Ala Ser Gly Asp Ala Asn Thr Ser 65 70 75 80 gaa gga aag cga ttg tcg ggc gaa gtg gac aag aca gcc gag gtg gag 288 Glu Gly Lys Arg Leu Ser Gly Glu Val Asp Lys Thr Ala Glu Val Glu 85 90 95 aca gcc gg 296 Thr Ala 98 98 PRT Toxoplasma gondii 98 Pro Val Asp Val Asp Asp Pro Arg Gly Cys Ser Gln Gln Ser Gly Asp 1 5 10 15 Thr Arg Asp Ser Ser Ser Pro Ala Thr Pro Gly Gly Arg Pro Ala Gly 20 25 30 Gly Ala Gly Gly Ala Ala Thr Ser Pro Lys Gly Gln Ala Phe Ala Pro 35 40 45 Arg Gly Gly Glu Gly Glu Ile Lys Pro Gln Glu Thr Gly Asn Ser Gly 50 55 60 Asp Ser Lys Ala Glu Gly Lys Glu Ala Ser Gly Asp Ala Asn Thr Ser 65 70 75 80 Glu Gly Lys Arg Leu Ser Gly Glu Val Asp Lys Thr Ala Glu Val Glu 85 90 95 Thr Ala 99 723 DNA Toxoplasma gondii CDS (1)..(159) 99 cga tcc tcc cga ggg acc gca gga agg ctc gcg tcc gaa gaa gac gac 48 Arg Ser Ser Arg Gly Thr Ala Gly Arg Leu Ala Ser Glu Glu Asp Asp 1 5 10 15 gga gac aac gaa gaa gag gaa cga gaa gaa gaa agg gag aga cgc gaa 96 Gly Asp Asn Glu Glu Glu Glu Arg Glu Glu Glu Arg Glu Arg Arg Glu 20 25 30 aga gaa gac ggg gaa gac gca ggc tct agg cgt cga gag aag gac ttc 144 Arg Glu Asp Gly Glu Asp Ala Gly Ser Arg Arg Arg Glu Lys Asp Phe 35 40 45 ttc cca gac acg act tgaatgcgta aaggcgtatt tttgtttccg atgaaaactc 199 Phe Pro Asp Thr Thr 50 gccaggggag gcgacttctc gcctctgagg aatccgacag tgacgagagg aagagggaag 259 gagacgcaga gaaggacgcg tcaggaggat ccggaattcc ggatcgggcg atggccccgg 319 agcgcgtgag ggcggtacac tgaagaacca acggaagaac actgggggtc gaaaatgtgt 379 ttcctttccg atgtggtctt cccagctttc ctgcagacat gtgtacagaa cagctgagaa 439 aaaacgacga aagctccaat tgtctcttcg ttctcgagca gagaaaaccc cccgaggcct 499 tcgcttggtc agggcgaaac ctcaagggtg catgcagagt cggccgtgcc cagagtagcc 559 tagtcatgca gcccatcagt agcttaattt gacgcaatgg ctatttttac attgtgaaga 619 gggttttcca atcaacaaac gccagagaag cctgtgttct ggaaaacctg aacgacggcc 679 gtcgttcccc tgtctgcttt accccctgac agtgcgtggt gagg 723 100 53 PRT Toxoplasma gondii 100 Arg Ser Ser Arg Gly Thr Ala Gly Arg Leu Ala Ser Glu Glu Asp Asp 1 5 10 15 Gly Asp Asn Glu Glu Glu Glu Arg Glu Glu Glu Arg Glu Arg Arg Glu 20 25 30 Arg Glu Asp Gly Glu Asp Ala Gly Ser Arg Arg Arg Glu Lys Asp Phe 35 40 45 Phe Pro Asp Thr Thr 50 101 270 DNA Toxoplasma gondii CDS (1)..(270) 101 cgg aag ccg att gtg cga agg gca aag agg ggg aga cgg att gca caa 48 Arg Lys Pro Ile Val Arg Arg Ala Lys Arg Gly Arg Arg Ile Ala Gln 1 5 10 15 aag ggg aag gag aaa caa att gca tcg aag gag ggg aag aaa ccc gct 96 Lys Gly Lys Glu Lys Gln Ile Ala Ser Lys Glu Gly Lys Lys Pro Ala 20 25 30 gta cca aag gaa ggt gag gaa aga ccc gct gaa cca acg gaa ggc gag 144 Val Pro Lys Glu Gly Glu Glu Arg Pro Ala Glu Pro Thr Glu Gly Glu 35 40 45 gaa agg ccc gtt ggg cca aag gaa ggc gag gaa aga ccc gtt gtg ccg 192 Glu Arg Pro Val Gly Pro Lys Glu Gly Glu Glu Arg Pro Val Val Pro 50 55 60 gac gta gac aag gag aaa cct gtt gtg cct gaa gga gac aag gag aaa 240 Asp Val Asp Lys Glu Lys Pro Val Val Pro Glu Gly Asp Lys Glu Lys 65 70 75 80 cct gtt gtg ccg gaa gga gac aag gat ccg 270 Pro Val Val Pro Glu Gly Asp Lys Asp Pro 85 90 102 90 PRT Toxoplasma gondii 102 Arg Lys Pro Ile Val Arg Arg Ala Lys Arg Gly Arg Arg Ile Ala Gln 1 5 10 15 Lys Gly Lys Glu Lys Gln Ile Ala Ser Lys Glu Gly Lys Lys Pro Ala 20 25 30 Val Pro Lys Glu Gly Glu Glu Arg Pro Ala Glu Pro Thr Glu Gly Glu 35 40 45 Glu Arg Pro Val Gly Pro Lys Glu Gly Glu Glu Arg Pro Val Val Pro 50 55 60 Asp Val Asp Lys Glu Lys Pro Val Val Pro Glu Gly Asp Lys Glu Lys 65 70 75 80 Pro Val Val Pro Glu Gly Asp Lys Asp Pro 85 90 103 503 DNA Toxoplasma gondii CDS (1)..(186) 103 cgg cat ctc tgg tgc gtg cgc gag aga tcc ccg caa cga gaa aga tgg 48 Arg His Leu Trp Cys Val Arg Glu Arg Ser Pro Gln Arg Glu Arg Trp 1 5 10 15 agc ttc gtc tcg ttc tcg ctt ttc ttc tct ttc cag ttc ttt ttc agc 96 Ser Phe Val Ser Phe Ser Leu Phe Phe Ser Phe Gln Phe Phe Phe Ser 20 25 30 aag caa gtc tcg cgc ctc cct cgt ccg agc agc gtc act gca ctg tgg 144 Lys Gln Val Ser Arg Leu Pro Arg Pro Ser Ser Val Thr Ala Leu Trp 35 40 45 gcc atc agc aga aag aag gcg aag aaa aga gac gac ggc aga 186 Ala Ile Ser Arg Lys Lys Ala Lys Lys Arg Asp Asp Gly Arg 50 55 60 taatggcgcg aaaatctatc ccaaaaacac atatatgcct tatggcagtg agcgaagaga 246 gggaactgcc aacgccttgg cggaagcccg ttctccaaac gaggttgagg taccaaacct 306 gcatgcggag agaccaaggc aggttttgtc ttccgtcgct tccgtggatg cttttcgcac 366 gtatgcaaaa gagagaacgg gaccaagtgc aagaagttat agagcagtcc cgacgacaga 426 gacgcancta gaggccgagc aagaatcgtt tttttcttct cgtaagggaa acgcagtgca 486 tanaagcaaa agaccgg 503 104 62 PRT Toxoplasma gondii 104 Arg His Leu Trp Cys Val Arg Glu Arg Ser Pro Gln Arg Glu Arg Trp 1 5 10 15 Ser Phe Val Ser Phe Ser Leu Phe Phe Ser Phe Gln Phe Phe Phe Ser 20 25 30 Lys Gln Val Ser Arg Leu Pro Arg Pro Ser Ser Val Thr Ala Leu Trp 35 40 45 Ala Ile Ser Arg Lys Lys Ala Lys Lys Arg Asp Asp Gly Arg 50 55 60 105 322 DNA Toxoplasma gondii CDS (1)..(219) 105 cgg cgg gac ttg cgg act tcg gtc tgg gac gct cgg gtg tac gta cac 48 Arg Arg Asp Leu Arg Thr Ser Val Trp Asp Ala Arg Val Tyr Val His 1 5 10 15 ctg gcg ggg ggc cag agg cgc tgc aac gag tcg cgg ggg atg gag gaa 96 Leu Ala Gly Gly Gln Arg Arg Cys Asn Glu Ser Arg Gly Met Glu Glu 20 25 30 gcg agg aaa agg agg tgt ctc gcg atg cgg tgc cag tgg act tcn tct 144 Ala Arg Lys Arg Arg Cys Leu Ala Met Arg Cys Gln Trp Thr Xaa Ser 35 40 45 gcg cta gat tgg agg gag agc tgg aaa aat gcc gag aca gct tcg cac 192 Ala Leu Asp Trp Arg Glu Ser Trp Lys Asn Ala Glu Thr Ala Ser His 50 55 60 gtc aca ttc ccg acg aaa cgc ccg cca tgaaggaaat cacagacatc 239 Val Thr Phe Pro Thr Lys Arg Pro Pro 65 70 accaaccttc ccgccgtggc taaaggaccg tcctgtgtat gtacagtttt tccaggcgaa 299 agccgaagag acagcgaaac cgg 322 106 73 PRT Toxoplasma gondii misc_feature (47)..(47) The ′Xaa′ at location 47 stands for Ser. 106 Arg Arg Asp Leu Arg Thr Ser Val Trp Asp Ala Arg Val Tyr Val His 1 5 10 15 Leu Ala Gly Gly Gln Arg Arg Cys Asn Glu Ser Arg Gly Met Glu Glu 20 25 30 Ala Arg Lys Arg Arg Cys Leu Ala Met Arg Cys Gln Trp Thr Xaa Ser 35 40 45 Ala Leu Asp Trp Arg Glu Ser Trp Lys Asn Ala Glu Thr Ala Ser His 50 55 60 Val Thr Phe Pro Thr Lys Arg Pro Pro 65 70 107 390 DNA Toxoplasma gondii CDS (1)..(201) 107 cgg cga atc ccc cag gaa ttg ttg aaa cag agt ctc aga ttc tac gga 48 Arg Arg Ile Pro Gln Glu Leu Leu Lys Gln Ser Leu Arg Phe Tyr Gly 1 5 10 15 ctc cga ggg cct ctg ctt gcc cgc cct gtg cac agg cgt cag cac gtg 96 Leu Arg Gly Pro Leu Leu Ala Arg Pro Val His Arg Arg Gln His Val 20 25 30 gtt ctc ana gaa aaa gtt ggt aag tgg aag tgg tgg agc caa gaa aaa 144 Val Leu Xaa Glu Lys Val Gly Lys Trp Lys Trp Trp Ser Gln Glu Lys 35 40 45 ctc aac tct tct tgt ttt ccg gag aat ttt cct ggt gtt caa ttc cac 192 Leu Asn Ser Ser Cys Phe Pro Glu Asn Phe Pro Gly Val Gln Phe His 50 55 60 ggt tct gga tagtctttgt tgtattaaaa cacatctaga aggactgaga 241 Gly Ser Gly 65 cgttgtcggt agttgaatta cagacacttc gttttccagc gtcagcttgc atgcccgtcc 301 cctgtttctg gaacacaagc tttgagaagg aaacgagaca gagaacgacg aaggaagtga 361 agcaaatcct ctgacggatt tccattcgg 390 108 67 PRT Toxoplasma gondii misc_feature (35)..(35) The ′Xaa′ at location 35 stands for Lys, Arg, Thr, or Ile. 108 Arg Arg Ile Pro Gln Glu Leu Leu Lys Gln Ser Leu Arg Phe Tyr Gly 1 5 10 15 Leu Arg Gly Pro Leu Leu Ala Arg Pro Val His Arg Arg Gln His Val 20 25 30 Val Leu Xaa Glu Lys Val Gly Lys Trp Lys Trp Trp Ser Gln Glu Lys 35 40 45 Leu Asn Ser Ser Cys Phe Pro Glu Asn Phe Pro Gly Val Gln Phe His 50 55 60 Gly Ser Gly 65 109 699 DNA Toxoplasma gondii CDS (1)..(699) 109 ccg tgc gtc tgt gag gaa aag tgc aag aca ggg ccg aac tgt gac cag 48 Pro Cys Val Cys Glu Glu Lys Cys Lys Thr Gly Pro Asn Cys Asp Gln 1 5 10 15 cat aaa ccg gag tgc tgt ggg tcg aac gac gac tgc cat cag cct cag 96 His Lys Pro Glu Cys Cys Gly Ser Asn Asp Asp Cys His Gln Pro Gln 20 25 30 ggg tac tgc aag atg gac atg tcc aca tgc atc tgc cgt cca ggc ttc 144 Gly Tyr Cys Lys Met Asp Met Ser Thr Cys Ile Cys Arg Pro Gly Phe 35 40 45 acg ggc gag aac tgc gga aca cgg gaa gat ctg tgc gca ggt gtg acg 192 Thr Gly Glu Asn Cys Gly Thr Arg Glu Asp Leu Cys Ala Gly Val Thr 50 55 60 tgc aag aac ggc ggg aca tgc gac tcc gtc act ggc ctg tgc cag tgc 240 Cys Lys Asn Gly Gly Thr Cys Asp Ser Val Thr Gly Leu Cys Gln Cys 65 70 75 80 gat gcc tgc cac ggc ggg aag acc tgc gag att acg aag gaa cac tgc 288 Asp Ala Cys His Gly Gly Lys Thr Cys Glu Ile Thr Lys Glu His Cys 85 90 95 tgc atc aat gac agt gac tgc aac ggc cac ggc acc tgc aac acg agc 336 Cys Ile Asn Asp Ser Asp Cys Asn Gly His Gly Thr Cys Asn Thr Ser 100 105 110 aac aat acc tgc aac tgc gag gca ggc ttc gct ggc acc aac tgc tcg 384 Asn Asn Thr Cys Asn Cys Glu Ala Gly Phe Ala Gly Thr Asn Cys Ser 115 120 125 agc agc gaa ggc aag tgc agc ggc aag acc tgc ttg agt gga cac tgc 432 Ser Ser Glu Gly Lys Cys Ser Gly Lys Thr Cys Leu Ser Gly His Cys 130 135 140 aat ccg gcg act ggc gca tgc gtc tgc gac ccg tgc cac acc ggc gag 480 Asn Pro Ala Thr Gly Ala Cys Val Cys Asp Pro Cys His Thr Gly Glu 145 150 155 160 aga tgc gaa acg ctc gtc aag gac tgc tgt gtt gtg aac gac acg tgc 528 Arg Cys Glu Thr Leu Val Lys Asp Cys Cys Val Val Asn Asp Thr Cys 165 170 175 aag ttc ccc aac ggc gtc tgc act gac agc aac agg tgt gag tgc cag 576 Lys Phe Pro Asn Gly Val Cys Thr Asp Ser Asn Arg Cys Glu Cys Gln 180 185 190 agc ggc tgg ggc cag ggc gac tgc agc aaa cca gtc gac aag tgc gaa 624 Ser Gly Trp Gly Gln Gly Asp Cys Ser Lys Pro Val Asp Lys Cys Glu 195 200 205 gac gtc agt tgc aac aac ggt tca tca tgc gac gcg gac tcc ggc aca 672 Asp Val Ser Cys Asn Asn Gly Ser Ser Cys Asp Ala Asp Ser Gly Thr 210 215 220 tgc att tgc ccc cca ggc ttt gga gac 699 Cys Ile Cys Pro Pro Gly Phe Gly Asp 225 230 110 233 PRT Toxoplasma gondii 110 Pro Cys Val Cys Glu Glu Lys Cys Lys Thr Gly Pro Asn Cys Asp Gln 1 5 10 15 His Lys Pro Glu Cys Cys Gly Ser Asn Asp Asp Cys His Gln Pro Gln 20 25 30 Gly Tyr Cys Lys Met Asp Met Ser Thr Cys Ile Cys Arg Pro Gly Phe 35 40 45 Thr Gly Glu Asn Cys Gly Thr Arg Glu Asp Leu Cys Ala Gly Val Thr 50 55 60 Cys Lys Asn Gly Gly Thr Cys Asp Ser Val Thr Gly Leu Cys Gln Cys 65 70 75 80 Asp Ala Cys His Gly Gly Lys Thr Cys Glu Ile Thr Lys Glu His Cys 85 90 95 Cys Ile Asn Asp Ser Asp Cys Asn Gly His Gly Thr Cys Asn Thr Ser 100 105 110 Asn Asn Thr Cys Asn Cys Glu Ala Gly Phe Ala Gly Thr Asn Cys Ser 115 120 125 Ser Ser Glu Gly Lys Cys Ser Gly Lys Thr Cys Leu Ser Gly His Cys 130 135 140 Asn Pro Ala Thr Gly Ala Cys Val Cys Asp Pro Cys His Thr Gly Glu 145 150 155 160 Arg Cys Glu Thr Leu Val Lys Asp Cys Cys Val Val Asn Asp Thr Cys 165 170 175 Lys Phe Pro Asn Gly Val Cys Thr Asp Ser Asn Arg Cys Glu Cys Gln 180 185 190 Ser Gly Trp Gly Gln Gly Asp Cys Ser Lys Pro Val Asp Lys Cys Glu 195 200 205 Asp Val Ser Cys Asn Asn Gly Ser Ser Cys Asp Ala Asp Ser Gly Thr 210 215 220 Cys Ile Cys Pro Pro Gly Phe Gly Asp 225 230 111 419 DNA Toxoplasma gondii CDS (1)..(417) 111 gag atg agc gcc cca gat agg caa aca gga aag ctt tcc gat tta ccg 48 Glu Met Ser Ala Pro Asp Arg Gln Thr Gly Lys Leu Ser Asp Leu Pro 1 5 10 15 cca ttt gct gag ctg cca cag ctg gca gaa ata cca aag ctc tcc gaa 96 Pro Phe Ala Glu Leu Pro Gln Leu Ala Glu Ile Pro Lys Leu Ser Glu 20 25 30 ctt ccg aaa atc gcg gac atg ccg aaa ttt tcg gat atg ccc aag atg 144 Leu Pro Lys Ile Ala Asp Met Pro Lys Phe Ser Asp Met Pro Lys Met 35 40 45 gcc gag atg ccc aag tta tca gat ata ccc aag atg gct gag atg ccc 192 Ala Glu Met Pro Lys Leu Ser Asp Ile Pro Lys Met Ala Glu Met Pro 50 55 60 aag tta tca gat ata ccc aag atg gct gag atg ccc aag tta tca gat 240 Lys Leu Ser Asp Ile Pro Lys Met Ala Glu Met Pro Lys Leu Ser Asp 65 70 75 80 ata ccc aag atg gct gag atg ccc aag ttt tca gat ata ccc aag atg 288 Ile Pro Lys Met Ala Glu Met Pro Lys Phe Ser Asp Ile Pro Lys Met 85 90 95 gct gag atg cca aag tta tca gat atg ccc aga atg gct gac att cca 336 Ala Glu Met Pro Lys Leu Ser Asp Met Pro Arg Met Ala Asp Ile Pro 100 105 110 cag ttt cca gag atg cct agg atg gtt gac atg cct cag ttt cca gaa 384 Gln Phe Pro Glu Met Pro Arg Met Val Asp Met Pro Gln Phe Pro Glu 115 120 125 atc ccc agg atg gct gat atg ccg caa ttt ccg cg 419 Ile Pro Arg Met Ala Asp Met Pro Gln Phe Pro 130 135 112 139 PRT Toxoplasma gondii 112 Glu Met Ser Ala Pro Asp Arg Gln Thr Gly Lys Leu Ser Asp Leu Pro 1 5 10 15 Pro Phe Ala Glu Leu Pro Gln Leu Ala Glu Ile Pro Lys Leu Ser Glu 20 25 30 Leu Pro Lys Ile Ala Asp Met Pro Lys Phe Ser Asp Met Pro Lys Met 35 40 45 Ala Glu Met Pro Lys Leu Ser Asp Ile Pro Lys Met Ala Glu Met Pro 50 55 60 Lys Leu Ser Asp Ile Pro Lys Met Ala Glu Met Pro Lys Leu Ser Asp 65 70 75 80 Ile Pro Lys Met Ala Glu Met Pro Lys Phe Ser Asp Ile Pro Lys Met 85 90 95 Ala Glu Met Pro Lys Leu Ser Asp Met Pro Arg Met Ala Asp Ile Pro 100 105 110 Gln Phe Pro Glu Met Pro Arg Met Val Asp Met Pro Gln Phe Pro Glu 115 120 125 Ile Pro Arg Met Ala Asp Met Pro Gln Phe Pro 130 135 113 303 DNA Toxoplasma gondii CDS (1)..(303) 113 gac gaa gct ctt cct ctc ttt gga gca aac ggt gga acc tca gtt cgg 48 Asp Glu Ala Leu Pro Leu Phe Gly Ala Asn Gly Gly Thr Ser Val Arg 1 5 10 15 ctc tcc ctc gac cgc agc gtc ctg ctt gtt ctc gaa ccc gca gag ccc 96 Leu Ser Leu Asp Arg Ser Val Leu Leu Val Leu Glu Pro Ala Glu Pro 20 25 30 ctg cta tcc tct tgg ccc cac ccg ggg aga aga gac act ttt ctt gaa 144 Leu Leu Ser Ser Trp Pro His Pro Gly Arg Arg Asp Thr Phe Leu Glu 35 40 45 ggc gat ggc gcg ggc atc ccg tct cct tca tct cgg ccg agt cgc gcg 192 Gly Asp Gly Ala Gly Ile Pro Ser Pro Ser Ser Arg Pro Ser Arg Ala 50 55 60 gcc gac cat tac acg aga ctc tcc acg att cgg tct ctt gcc agg gat 240 Ala Asp His Tyr Thr Arg Leu Ser Thr Ile Arg Ser Leu Ala Arg Asp 65 70 75 80 gga gag gtc gac tcc gag ctg gcg ggg gga ccg cag gaa aga gaa agt 288 Gly Glu Val Asp Ser Glu Leu Ala Gly Gly Pro Gln Glu Arg Glu Ser 85 90 95 gtc aga gtg gat ccg 303 Val Arg Val Asp Pro 100 114 101 PRT Toxoplasma gondii 114 Asp Glu Ala Leu Pro Leu Phe Gly Ala Asn Gly Gly Thr Ser Val Arg 1 5 10 15 Leu Ser Leu Asp Arg Ser Val Leu Leu Val Leu Glu Pro Ala Glu Pro 20 25 30 Leu Leu Ser Ser Trp Pro His Pro Gly Arg Arg Asp Thr Phe Leu Glu 35 40 45 Gly Asp Gly Ala Gly Ile Pro Ser Pro Ser Ser Arg Pro Ser Arg Ala 50 55 60 Ala Asp His Tyr Thr Arg Leu Ser Thr Ile Arg Ser Leu Ala Arg Asp 65 70 75 80 Gly Glu Val Asp Ser Glu Leu Ala Gly Gly Pro Gln Glu Arg Glu Ser 85 90 95 Val Arg Val Asp Pro 100 115 696 DNA Toxoplasma gondii CDS (1)..(696) 115 cgc ggt aac gaa aaa aca tgc tca gat gcc aag cat cca gtg tac atc 48 Arg Gly Asn Glu Lys Thr Cys Ser Asp Ala Lys His Pro Val Tyr Ile 1 5 10 15 aaa ctt ggc aaa ggg gaa cgc gag gcc gta ttc aag tgt ggc gac ggc 96 Lys Leu Gly Lys Gly Glu Arg Glu Ala Val Phe Lys Cys Gly Asp Gly 20 25 30 ctc act act ctt gag cca tcg cag aac aca gat aaa cca aaa ttc tgt 144 Leu Thr Thr Leu Glu Pro Ser Gln Asn Thr Asp Lys Pro Lys Phe Cys 35 40 45 gaa tcg ata gac tgc aac gat act gca gaa ctt gaa aca acg ttc cca 192 Glu Ser Ile Asp Cys Asn Asp Thr Ala Glu Leu Glu Thr Thr Phe Pro 50 55 60 ggg gcg tac tgg gac gag aga aac aaa aaa gcg aat ata tac aga ctg 240 Gly Ala Tyr Trp Asp Glu Arg Asn Lys Lys Ala Asn Ile Tyr Arg Leu 65 70 75 80 gtc att cct acc gtg agc aga aaa gac act cgg atg tat tat aaa tgt 288 Val Ile Pro Thr Val Ser Arg Lys Asp Thr Arg Met Tyr Tyr Lys Cys 85 90 95 aaa ggc act tcg gat tcc gcc gac cca tgc aca gta ctg ata aac gtg 336 Lys Gly Thr Ser Asp Ser Ala Asp Pro Cys Thr Val Leu Ile Asn Val 100 105 110 aaa tct aca gag act gat gat gat gag gaa gag gac gtg cag gag tgc 384 Lys Ser Thr Glu Thr Asp Asp Asp Glu Glu Glu Asp Val Gln Glu Cys 115 120 125 acg gtg ggc acc gag aag aaa gtc aca ctg tcc ccc acc gat acc gtg 432 Thr Val Gly Thr Glu Lys Lys Val Thr Leu Ser Pro Thr Asp Thr Val 130 135 140 aaa ttc aag tgc aat ctc gga aca gtt gtg cag cca tca ttc tcc aca 480 Lys Phe Lys Cys Asn Leu Gly Thr Val Val Gln Pro Ser Phe Ser Thr 145 150 155 160 gca act ccg aaa gtc ttt gac gac tcc gat ggc tcc tgc agt gca cag 528 Ala Thr Pro Lys Val Phe Asp Asp Ser Asp Gly Ser Cys Ser Ala Gln 165 170 175 gct agc ctg acg tct ctg gta gat gcc tcg ctc acg gaa gac agt tca 576 Ala Ser Leu Thr Ser Leu Val Asp Ala Ser Leu Thr Glu Asp Ser Ser 180 185 190 cat ggc aag tac aca atg tat acc atg aac ctg aac gca cgc cca gct 624 His Gly Lys Tyr Thr Met Tyr Thr Met Asn Leu Asn Ala Arg Pro Ala 195 200 205 gag aca aag aat ctc tgt ctc caa tgt tcc tct gga aag cag aac tgc 672 Glu Thr Lys Asn Leu Cys Leu Gln Cys Ser Ser Gly Lys Gln Asn Cys 210 215 220 aaa atg cgc atc cat gta ccc gcg 696 Lys Met Arg Ile His Val Pro Ala 225 230 116 232 PRT Toxoplasma gondii 116 Arg Gly Asn Glu Lys Thr Cys Ser Asp Ala Lys His Pro Val Tyr Ile 1 5 10 15 Lys Leu Gly Lys Gly Glu Arg Glu Ala Val Phe Lys Cys Gly Asp Gly 20 25 30 Leu Thr Thr Leu Glu Pro Ser Gln Asn Thr Asp Lys Pro Lys Phe Cys 35 40 45 Glu Ser Ile Asp Cys Asn Asp Thr Ala Glu Leu Glu Thr Thr Phe Pro 50 55 60 Gly Ala Tyr Trp Asp Glu Arg Asn Lys Lys Ala Asn Ile Tyr Arg Leu 65 70 75 80 Val Ile Pro Thr Val Ser Arg Lys Asp Thr Arg Met Tyr Tyr Lys Cys 85 90 95 Lys Gly Thr Ser Asp Ser Ala Asp Pro Cys Thr Val Leu Ile Asn Val 100 105 110 Lys Ser Thr Glu Thr Asp Asp Asp Glu Glu Glu Asp Val Gln Glu Cys 115 120 125 Thr Val Gly Thr Glu Lys Lys Val Thr Leu Ser Pro Thr Asp Thr Val 130 135 140 Lys Phe Lys Cys Asn Leu Gly Thr Val Val Gln Pro Ser Phe Ser Thr 145 150 155 160 Ala Thr Pro Lys Val Phe Asp Asp Ser Asp Gly Ser Cys Ser Ala Gln 165 170 175 Ala Ser Leu Thr Ser Leu Val Asp Ala Ser Leu Thr Glu Asp Ser Ser 180 185 190 His Gly Lys Tyr Thr Met Tyr Thr Met Asn Leu Asn Ala Arg Pro Ala 195 200 205 Glu Thr Lys Asn Leu Cys Leu Gln Cys Ser Ser Gly Lys Gln Asn Cys 210 215 220 Lys Met Arg Ile His Val Pro Ala 225 230 117 173 DNA Toxoplasma gondii CDS (1)..(171) 117 act tgt gcg ggg gac ccc tcg gcc ttt ccg acg aag ctg ccg tcg aca 48 Thr Cys Ala Gly Asp Pro Ser Ala Phe Pro Thr Lys Leu Pro Ser Thr 1 5 10 15 cca ccc gct gct gtg ccg tct gac ggg ttg ctc gct ttg ccc tca gaa 96 Pro Pro Ala Ala Val Pro Ser Asp Gly Leu Leu Ala Leu Pro Ser Glu 20 25 30 ctt gag gcg ccg gtg gag gac ggc gac cgc gag gct ttc gtt gga gtc 144 Leu Glu Ala Pro Val Glu Asp Gly Asp Arg Glu Ala Phe Val Gly Val 35 40 45 gac ggc gcg gtc agc ggc tgg gac gag cg 173 Asp Gly Ala Val Ser Gly Trp Asp Glu 50 55 118 57 PRT Toxoplasma gondii 118 Thr Cys Ala Gly Asp Pro Ser Ala Phe Pro Thr Lys Leu Pro Ser Thr 1 5 10 15 Pro Pro Ala Ala Val Pro Ser Asp Gly Leu Leu Ala Leu Pro Ser Glu 20 25 30 Leu Glu Ala Pro Val Glu Asp Gly Asp Arg Glu Ala Phe Val Gly Val 35 40 45 Asp Gly Ala Val Ser Gly Trp Asp Glu 50 55 119 369 DNA Toxoplasma gondii CDS (1)..(369) 119 cgc tct gtg ttt cag gtc gcg agc gac gcg aga aac gcc cga cag gcg 48 Arg Ser Val Phe Gln Val Ala Ser Asp Ala Arg Asn Ala Arg Gln Ala 1 5 10 15 acc tcg ggc gtg ccg cgg cag agg gga aag aag gcc gtc acg gcg cga 96 Thr Ser Gly Val Pro Arg Gln Arg Gly Lys Lys Ala Val Thr Ala Arg 20 25 30 gtc tct ttc ggc gct cta gag gag aga gac agt tcg agt tcg gac gtt 144 Val Ser Phe Gly Ala Leu Glu Glu Arg Asp Ser Ser Ser Ser Asp Val 35 40 45 ccc gag gaa agg gat aaa gac gcc gaa aac ggc tct gcg cct cgc atc 192 Pro Glu Glu Arg Asp Lys Asp Ala Glu Asn Gly Ser Ala Pro Arg Ile 50 55 60 ttc gcg tct tct tcc ctg acg cgg ctt tcg cct cct tct ctc tct ccg 240 Phe Ala Ser Ser Ser Leu Thr Arg Leu Ser Pro Pro Ser Leu Ser Pro 65 70 75 80 ctc tca agt tcg ggg cca tct tca ccg tct tct tcc gtt tcg cgg ttt 288 Leu Ser Ser Ser Gly Pro Ser Ser Pro Ser Ser Ser Val Ser Arg Phe 85 90 95 acc gac tcc ctg ccg cag tcg acg gct tcg tct cgt ctc tcc tct gct 336 Thr Asp Ser Leu Pro Gln Ser Thr Ala Ser Ser Arg Leu Ser Ser Ala 100 105 110 tat tcg ctt gag tcg cgt cgg cct ctg gag ccg 369 Tyr Ser Leu Glu Ser Arg Arg Pro Leu Glu Pro 115 120 120 123 PRT Toxoplasma gondii 120 Arg Ser Val Phe Gln Val Ala Ser Asp Ala Arg Asn Ala Arg Gln Ala 1 5 10 15 Thr Ser Gly Val Pro Arg Gln Arg Gly Lys Lys Ala Val Thr Ala Arg 20 25 30 Val Ser Phe Gly Ala Leu Glu Glu Arg Asp Ser Ser Ser Ser Asp Val 35 40 45 Pro Glu Glu Arg Asp Lys Asp Ala Glu Asn Gly Ser Ala Pro Arg Ile 50 55 60 Phe Ala Ser Ser Ser Leu Thr Arg Leu Ser Pro Pro Ser Leu Ser Pro 65 70 75 80 Leu Ser Ser Ser Gly Pro Ser Ser Pro Ser Ser Ser Val Ser Arg Phe 85 90 95 Thr Asp Ser Leu Pro Gln Ser Thr Ala Ser Ser Arg Leu Ser Ser Ala 100 105 110 Tyr Ser Leu Glu Ser Arg Arg Pro Leu Glu Pro 115 120 121 566 DNA Toxoplasma gondii CDS (1)..(183) 121 cgg cgg tgg atg acg ggt gct aat tac gag ggc cac cag gga caa tat 48 Arg Arg Trp Met Thr Gly Ala Asn Tyr Glu Gly His Gln Gly Gln Tyr 1 5 10 15 ttg aac tac tgc acc att tct cac ttc ttg tgt tgc cct aat ggg atc 96 Leu Asn Tyr Cys Thr Ile Ser His Phe Leu Cys Cys Pro Asn Gly Ile 20 25 30 tgt cgt ttt caa tgg gac aat cag ccc agt ctc gat agg gag gac tca 144 Cys Arg Phe Gln Trp Asp Asn Gln Pro Ser Leu Asp Arg Glu Asp Ser 35 40 45 atc tgg tgc tct gaa tcg att tct cgt ttt cgc ctg agc taagataact 193 Ile Trp Cys Ser Glu Ser Ile Ser Arg Phe Arg Leu Ser 50 55 60 gctgaagaca tttgtagacg ctttctacaa acccacgtgg caaaatctta cggaaggaca 253 aatgcctctt tcaacactct tctttcatcg ctgcttgtta cactcctgag aggccccaag 313 agccacggtg ccactttgct tccccagccg ctactgtgca aattctttat agaagagcac 373 aaatgttccc cgaagaagca gcagcaccct ttgaggagcc tgaagagcga ccctacgaat 433 cacagcgttc agaaatagcc tactgtagta ttaaggagac taccaaagtg aaaatcgtga 493 tatgtctaca ggtggtatgc aagtgttggt tttccagata tacgctgcaa ctaaaacacc 553 aaaatgatag aat 566 122 61 PRT Toxoplasma gondii 122 Arg Arg Trp Met Thr Gly Ala Asn Tyr Glu Gly His Gln Gly Gln Tyr 1 5 10 15 Leu Asn Tyr Cys Thr Ile Ser His Phe Leu Cys Cys Pro Asn Gly Ile 20 25 30 Cys Arg Phe Gln Trp Asp Asn Gln Pro Ser Leu Asp Arg Glu Asp Ser 35 40 45 Ile Trp Cys Ser Glu Ser Ile Ser Arg Phe Arg Leu Ser 50 55 60 123 616 DNA Toxoplasma gondii CDS (1)..(615) 123 cac gag cgc cgt gtg gca gag caa aag gct cgt gaa gaa cgc gag aga 48 His Glu Arg Arg Val Ala Glu Gln Lys Ala Arg Glu Glu Arg Glu Arg 1 5 10 15 cag gca gca tct cag cga aac gga tcg aca gaa ccc gct gtt gct ccc 96 Gln Ala Ala Ser Gln Arg Asn Gly Ser Thr Glu Pro Ala Val Ala Pro 20 25 30 tcc tct tgt tcc tcc agc aac tca cag aac cct ccg caa gat tcc tcg 144 Ser Ser Cys Ser Ser Ser Asn Ser Gln Asn Pro Pro Gln Asp Ser Ser 35 40 45 cac gtc tgc tgt ccc tcc tcc tct gcc ttc tcc cag ccg cgc tct tct 192 His Val Cys Cys Pro Ser Ser Ser Ala Phe Ser Gln Pro Arg Ser Ser 50 55 60 ctg tcc tca tcc tca ccc tct tcg tct gcc gcg tta cca tcg ggg tct 240 Leu Ser Ser Ser Ser Pro Ser Ser Ser Ala Ala Leu Pro Ser Gly Ser 65 70 75 80 tct ccc tcg gct gcg tct tcg tct cat gca ctt ggg gtg gtg gac tcg 288 Ser Pro Ser Ala Ala Ser Ser Ser His Ala Leu Gly Val Val Asp Ser 85 90 95 gac cgg att tct gcg gag gag gcg gcg tcc ctc gag gag gcc cgg cgg 336 Asp Arg Ile Ser Ala Glu Glu Ala Ala Ser Leu Glu Glu Ala Arg Arg 100 105 110 ctg cag aga cag ttc gag gcg gaa atg gtg ggc att cga ccg cca gac 384 Leu Gln Arg Gln Phe Glu Ala Glu Met Val Gly Ile Arg Pro Pro Asp 115 120 125 gac acc tac gag gaa acg ctg att tct gag gac atc cat cct tcc cac 432 Asp Thr Tyr Glu Glu Thr Leu Ile Ser Glu Asp Ile His Pro Ser His 130 135 140 cga gcc tgg tgg gaa aga cct agc gcc tcg ccg att cgt ctg tcg cgc 480 Arg Ala Trp Trp Glu Arg Pro Ser Ala Ser Pro Ile Arg Leu Ser Arg 145 150 155 160 gcg gcg tcg atg aga agt gac ggt cgc aga ggt caa cag ccc ccg agt 528 Ala Ala Ser Met Arg Ser Asp Gly Arg Arg Gly Gln Gln Pro Pro Ser 165 170 175 cga cag tct cct cag gac ggg gag gaa gac gac gcc gct ctc gcc aga 576 Arg Gln Ser Pro Gln Asp Gly Glu Glu Asp Asp Ala Ala Leu Ala Arg 180 185 190 cga ctt cag gaa gaa gaa tac agc cga cat cga gag gtc g 616 Arg Leu Gln Glu Glu Glu Tyr Ser Arg His Arg Glu Val 195 200 205 124 205 PRT Toxoplasma gondii 124 His Glu Arg Arg Val Ala Glu Gln Lys Ala Arg Glu Glu Arg Glu Arg 1 5 10 15 Gln Ala Ala Ser Gln Arg Asn Gly Ser Thr Glu Pro Ala Val Ala Pro 20 25 30 Ser Ser Cys Ser Ser Ser Asn Ser Gln Asn Pro Pro Gln Asp Ser Ser 35 40 45 His Val Cys Cys Pro Ser Ser Ser Ala Phe Ser Gln Pro Arg Ser Ser 50 55 60 Leu Ser Ser Ser Ser Pro Ser Ser Ser Ala Ala Leu Pro Ser Gly Ser 65 70 75 80 Ser Pro Ser Ala Ala Ser Ser Ser His Ala Leu Gly Val Val Asp Ser 85 90 95 Asp Arg Ile Ser Ala Glu Glu Ala Ala Ser Leu Glu Glu Ala Arg Arg 100 105 110 Leu Gln Arg Gln Phe Glu Ala Glu Met Val Gly Ile Arg Pro Pro Asp 115 120 125 Asp Thr Tyr Glu Glu Thr Leu Ile Ser Glu Asp Ile His Pro Ser His 130 135 140 Arg Ala Trp Trp Glu Arg Pro Ser Ala Ser Pro Ile Arg Leu Ser Arg 145 150 155 160 Ala Ala Ser Met Arg Ser Asp Gly Arg Arg Gly Gln Gln Pro Pro Ser 165 170 175 Arg Gln Ser Pro Gln Asp Gly Glu Glu Asp Asp Ala Ala Leu Ala Arg 180 185 190 Arg Leu Gln Glu Glu Glu Tyr Ser Arg His Arg Glu Val 195 200 205 125 762 DNA Toxoplasma gondii CDS (1)..(762) 125 cgg gat cag gct cct aag cca gtg ccc gag gca gcc gac gaa ttt gac 48 Arg Asp Gln Ala Pro Lys Pro Val Pro Glu Ala Ala Asp Glu Phe Asp 1 5 10 15 cag gct cct atg cca ctg ccc gaa gca ccc gaa gac ttt gac cag gct 96 Gln Ala Pro Met Pro Leu Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala 20 25 30 cct gag cca ctg cgc gag gca gcc gaa gaa ttt gac cag gct cct atg 144 Pro Glu Pro Leu Arg Glu Ala Ala Glu Glu Phe Asp Gln Ala Pro Met 35 40 45 cca gtg ccc gag gca ccc gaa gac ttt gac cag att cct aag cca gtg 192 Pro Val Pro Glu Ala Pro Glu Asp Phe Asp Gln Ile Pro Lys Pro Val 50 55 60 ccc gag gca ccc gaa gaa ttt gac cag gct cct atg cca gtg ccc gag 240 Pro Glu Ala Pro Glu Glu Phe Asp Gln Ala Pro Met Pro Val Pro Glu 65 70 75 80 gca ccc gaa gac ttt gac cag att cct aag cca gtg ccc gag gca ccc 288 Ala Pro Glu Asp Phe Asp Gln Ile Pro Lys Pro Val Pro Glu Ala Pro 85 90 95 gaa gaa ttt gac cag gct cct atg cca ctc ccc gaa gca ccc gaa gaa 336 Glu Glu Phe Asp Gln Ala Pro Met Pro Leu Pro Glu Ala Pro Glu Glu 100 105 110 tcc gag cag gct cct gag cca ctg ccc gag gca ccc gaa gaa tcc gag 384 Ser Glu Gln Ala Pro Glu Pro Leu Pro Glu Ala Pro Glu Glu Ser Glu 115 120 125 cag gct cct gag cca ctg ccc gag gca ccc gaa gaa tcc gag cag gct 432 Gln Ala Pro Glu Pro Leu Pro Glu Ala Pro Glu Glu Ser Glu Gln Ala 130 135 140 cct gag cca ctg ccc gag gca ccc gaa gaa tcc gag cag gct cct gag 480 Pro Glu Pro Leu Pro Glu Ala Pro Glu Glu Ser Glu Gln Ala Pro Glu 145 150 155 160 cca ctg ccc gag gca ccc gaa gaa tcc gag cag gct cct gag cca ctg 528 Pro Leu Pro Glu Ala Pro Glu Glu Ser Glu Gln Ala Pro Glu Pro Leu 165 170 175 ccc gag gca ccc gaa gaa ttt gac cag gct cct atg cca ctg ccc gcg 576 Pro Glu Ala Pro Glu Glu Phe Asp Gln Ala Pro Met Pro Leu Pro Ala 180 185 190 gcc ccc gaa gac ttt gac cag cct gct atg cca ctg ccc ccg gcc ccc 624 Ala Pro Glu Asp Phe Asp Gln Pro Ala Met Pro Leu Pro Pro Ala Pro 195 200 205 gaa gac ttt gac cag gct ccc atg cca ctg ccg cag gca ccc gaa gaa 672 Glu Asp Phe Asp Gln Ala Pro Met Pro Leu Pro Gln Ala Pro Glu Glu 210 215 220 ctc gag cag gct ccc gct tcc acc ccg agg agg cgg agc agg agg tgc 720 Leu Glu Gln Ala Pro Ala Ser Thr Pro Arg Arg Arg Ser Arg Arg Cys 225 230 235 240 ctg aga gaa aaa ctg acg cag gaa gtg aac ctg aga agg atc 762 Leu Arg Glu Lys Leu Thr Gln Glu Val Asn Leu Arg Arg Ile 245 250 126 254 PRT Toxoplasma gondii 126 Arg Asp Gln Ala Pro Lys Pro Val Pro Glu Ala Ala Asp Glu Phe Asp 1 5 10 15 Gln Ala Pro Met Pro Leu Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala 20 25 30 Pro Glu Pro Leu Arg Glu Ala Ala Glu Glu Phe Asp Gln Ala Pro Met 35 40 45 Pro Val Pro Glu Ala Pro Glu Asp Phe Asp Gln Ile Pro Lys Pro Val 50 55 60 Pro Glu Ala Pro Glu Glu Phe Asp Gln Ala Pro Met Pro Val Pro Glu 65 70 75 80 Ala Pro Glu Asp Phe Asp Gln Ile Pro Lys Pro Val Pro Glu Ala Pro 85 90 95 Glu Glu Phe Asp Gln Ala Pro Met Pro Leu Pro Glu Ala Pro Glu Glu 100 105 110 Ser Glu Gln Ala Pro Glu Pro Leu Pro Glu Ala Pro Glu Glu Ser Glu 115 120 125 Gln Ala Pro Glu Pro Leu Pro Glu Ala Pro Glu Glu Ser Glu Gln Ala 130 135 140 Pro Glu Pro Leu Pro Glu Ala Pro Glu Glu Ser Glu Gln Ala Pro Glu 145 150 155 160 Pro Leu Pro Glu Ala Pro Glu Glu Ser Glu Gln Ala Pro Glu Pro Leu 165 170 175 Pro Glu Ala Pro Glu Glu Phe Asp Gln Ala Pro Met Pro Leu Pro Ala 180 185 190 Ala Pro Glu Asp Phe Asp Gln Pro Ala Met Pro Leu Pro Pro Ala Pro 195 200 205 Glu Asp Phe Asp Gln Ala Pro Met Pro Leu Pro Gln Ala Pro Glu Glu 210 215 220 Leu Glu Gln Ala Pro Ala Ser Thr Pro Arg Arg Arg Ser Arg Arg Cys 225 230 235 240 Leu Arg Glu Lys Leu Thr Gln Glu Val Asn Leu Arg Arg Ile 245 250 127 236 DNA Toxoplasma gondii CDS (1)..(234) 127 cgc gga gag ggg gag act gag aga ggg cag aat gag gag act cac gca 48 Arg Gly Glu Gly Glu Thr Glu Arg Gly Gln Asn Glu Glu Thr His Ala 1 5 10 15 acg aac aag tcc tca ggc gtc gcc agt ttg gag gca cca gcg tcg ttc 96 Thr Asn Lys Ser Ser Gly Val Ala Ser Leu Glu Ala Pro Ala Ser Phe 20 25 30 gcg cag gag ggc gac gga ggg cgg aga gaa gaa gca agc caa gca aaa 144 Ala Gln Glu Gly Asp Gly Gly Arg Arg Glu Glu Ala Ser Gln Ala Lys 35 40 45 atg ggg acg tct ccc ccg tcg aat cag gtg atc aac gtt gta gac gaa 192 Met Gly Thr Ser Pro Pro Ser Asn Gln Val Ile Asn Val Val Asp Glu 50 55 60 gac gag gag gac gac gag gaa gca gag gcg cta gag gct ccc gg 236 Asp Glu Glu Asp Asp Glu Glu Ala Glu Ala Leu Glu Ala Pro 65 70 75 128 78 PRT Toxoplasma gondii 128 Arg Gly Glu Gly Glu Thr Glu Arg Gly Gln Asn Glu Glu Thr His Ala 1 5 10 15 Thr Asn Lys Ser Ser Gly Val Ala Ser Leu Glu Ala Pro Ala Ser Phe 20 25 30 Ala Gln Glu Gly Asp Gly Gly Arg Arg Glu Glu Ala Ser Gln Ala Lys 35 40 45 Met Gly Thr Ser Pro Pro Ser Asn Gln Val Ile Asn Val Val Asp Glu 50 55 60 Asp Glu Glu Asp Asp Glu Glu Ala Glu Ala Leu Glu Ala Pro 65 70 75 129 569 DNA Toxoplasma gondii CDS (1)..(567) 129 cga tct cgt ttt ggt cct gag caa ttc gct att tcg gat gtc tca ggc 48 Arg Ser Arg Phe Gly Pro Glu Gln Phe Ala Ile Ser Asp Val Ser Gly 1 5 10 15 aca ctt gtt aat gca agc tgg ctt ggt gcc tct gca ggg gag act atc 96 Thr Leu Val Asn Ala Ser Trp Leu Gly Ala Ser Ala Gly Glu Thr Ile 20 25 30 gct gat tca agg gct tta agg cgt gac cta tca ttc cca ctg tct agt 144 Ala Asp Ser Arg Ala Leu Arg Arg Asp Leu Ser Phe Pro Leu Ser Ser 35 40 45 cgt caa ctg cga gaa cgt ggc ctt gct tct caa gat tcc tca ctt tca 192 Arg Gln Leu Arg Glu Arg Gly Leu Ala Ser Gln Asp Ser Ser Leu Ser 50 55 60 agc act cca aaa ttg tcc ctg caa cac gac cac ttt gca aag act ctg 240 Ser Thr Pro Lys Leu Ser Leu Gln His Asp His Phe Ala Lys Thr Leu 65 70 75 80 gta aaa cga aga gcg ctg tct gca acg aac tcc aca gaa cgc agc ggc 288 Val Lys Arg Arg Ala Leu Ser Ala Thr Asn Ser Thr Glu Arg Ser Gly 85 90 95 aaa cca gtt cgt tgc ttt act gaa acc agc gtg agg tta ggt gca cct 336 Lys Pro Val Arg Cys Phe Thr Glu Thr Ser Val Arg Leu Gly Ala Pro 100 105 110 act caa ccg gta atg gag gaa atg cct ttg gga gaa gga gag gta aat 384 Thr Gln Pro Val Met Glu Glu Met Pro Leu Gly Glu Gly Glu Val Asn 115 120 125 ctg gtc tcc gaa cac gac gat tat gca gaa tcc acc agt cat ctg gat 432 Leu Val Ser Glu His Asp Asp Tyr Ala Glu Ser Thr Ser His Leu Asp 130 135 140 acg gtg aat ggg aga gaa aga aga gag gaa agg cat tac gcg gag acg 480 Thr Val Asn Gly Arg Glu Arg Arg Glu Glu Arg His Tyr Ala Glu Thr 145 150 155 160 gag gcg aca gac gaa ttc aaa tcc gca atg cac cac gtg acg tcg ccc 528 Glu Ala Thr Asp Glu Phe Lys Ser Ala Met His His Val Thr Ser Pro 165 170 175 gga ggg gta ccc gca acg aaa aag gtg gtg tgg aag atc cg 569 Gly Gly Val Pro Ala Thr Lys Lys Val Val Trp Lys Ile 180 185 130 189 PRT Toxoplasma gondii 130 Arg Ser Arg Phe Gly Pro Glu Gln Phe Ala Ile Ser Asp Val Ser Gly 1 5 10 15 Thr Leu Val Asn Ala Ser Trp Leu Gly Ala Ser Ala Gly Glu Thr Ile 20 25 30 Ala Asp Ser Arg Ala Leu Arg Arg Asp Leu Ser Phe Pro Leu Ser Ser 35 40 45 Arg Gln Leu Arg Glu Arg Gly Leu Ala Ser Gln Asp Ser Ser Leu Ser 50 55 60 Ser Thr Pro Lys Leu Ser Leu Gln His Asp His Phe Ala Lys Thr Leu 65 70 75 80 Val Lys Arg Arg Ala Leu Ser Ala Thr Asn Ser Thr Glu Arg Ser Gly 85 90 95 Lys Pro Val Arg Cys Phe Thr Glu Thr Ser Val Arg Leu Gly Ala Pro 100 105 110 Thr Gln Pro Val Met Glu Glu Met Pro Leu Gly Glu Gly Glu Val Asn 115 120 125 Leu Val Ser Glu His Asp Asp Tyr Ala Glu Ser Thr Ser His Leu Asp 130 135 140 Thr Val Asn Gly Arg Glu Arg Arg Glu Glu Arg His Tyr Ala Glu Thr 145 150 155 160 Glu Ala Thr Asp Glu Phe Lys Ser Ala Met His His Val Thr Ser Pro 165 170 175 Gly Gly Val Pro Ala Thr Lys Lys Val Val Trp Lys Ile 180 185 131 232 DNA Toxoplasma gondii 131 cggcgactca gatgggagtg agaaagatgc aaacaggtgc tgaaaaaaca ccacttaata 60 gaggagacaa accccggtgg agaaagcgaa acgagactgg aacggcaacg aaatagagaa 120 gacacagccc caaactcccg acagcgtgtt gctctgtcgg gcaggcaggc caagctggca 180 agccgctagc atgccacgtg ctgtactgct ggcccgaaac tacagtgcgc ac 232 132 276 DNA Toxoplasma gondii CDS (1)..(276) 132 ccc gga att ccg gct ccg ggt cgc aaa gcg atc cat ttg ata aaa gac 48 Pro Gly Ile Pro Ala Pro Gly Arg Lys Ala Ile His Leu Ile Lys Asp 1 5 10 15 tgc gtt ttc tgc ctt ggg gaa ctc ttc ttg aat ggc acg aga ggc cac 96 Cys Val Phe Cys Leu Gly Glu Leu Phe Leu Asn Gly Thr Arg Gly His 20 25 30 aga cag aga gag agg gag gga aag cca aag aag caa aca ggc tcg gaa 144 Arg Gln Arg Glu Arg Glu Gly Lys Pro Lys Lys Gln Thr Gly Ser Glu 35 40 45 gcg ccc aga ata cag gca gcc tct ccg aag tca ctc acc ttg tac gat 192 Ala Pro Arg Ile Gln Ala Ala Ser Pro Lys Ser Leu Thr Leu Tyr Asp 50 55 60 ctt gtg cac agt gat gta ggg cgc atg cag aac gac gcc tcc aac atg 240 Leu Val His Ser Asp Val Gly Arg Met Gln Asn Asp Ala Ser Asn Met 65 70 75 80 aat att ctc ctc ggc caa ggc cgc cgc caa gta gcg 276 Asn Ile Leu Leu Gly Gln Gly Arg Arg Gln Val Ala 85 90 133 92 PRT Toxoplasma gondii 133 Pro Gly Ile Pro Ala Pro Gly Arg Lys Ala Ile His Leu Ile Lys Asp 1 5 10 15 Cys Val Phe Cys Leu Gly Glu Leu Phe Leu Asn Gly Thr Arg Gly His 20 25 30 Arg Gln Arg Glu Arg Glu Gly Lys Pro Lys Lys Gln Thr Gly Ser Glu 35 40 45 Ala Pro Arg Ile Gln Ala Ala Ser Pro Lys Ser Leu Thr Leu Tyr Asp 50 55 60 Leu Val His Ser Asp Val Gly Arg Met Gln Asn Asp Ala Ser Asn Met 65 70 75 80 Asn Ile Leu Leu Gly Gln Gly Arg Arg Gln Val Ala 85 90 134 309 DNA Toxoplasma gondii CDS (1)..(309) 134 cgc gga cac act gga gag agg tgg tcg gac agg gag gga gaa tcc gag 48 Arg Gly His Thr Gly Glu Arg Trp Ser Asp Arg Glu Gly Glu Ser Glu 1 5 10 15 atg tgc agt gga gga caa atg gaa aag aga gag agc cga cgc gtt tct 96 Met Cys Ser Gly Gly Gln Met Glu Lys Arg Glu Ser Arg Arg Val Ser 20 25 30 ttt gcg gat gaa gag atg cgg aat ccg aca gaa aac ctg aag gta gat 144 Phe Ala Asp Glu Glu Met Arg Asn Pro Thr Glu Asn Leu Lys Val Asp 35 40 45 gcc aac tgt gtg ctc gaa ggt ctg tcc acc tca gtg tgt gcg agg cgg 192 Ala Asn Cys Val Leu Glu Gly Leu Ser Thr Ser Val Cys Ala Arg Arg 50 55 60 ctg aag agg caa aag cga act gca ggt cag tct ggc ttc ctc gca ata 240 Leu Lys Arg Gln Lys Arg Thr Ala Gly Gln Ser Gly Phe Leu Ala Ile 65 70 75 80 cga aac gtc caa ggc acc gcg acc gcc cta aaa cac cct gat tcc aca 288 Arg Asn Val Gln Gly Thr Ala Thr Ala Leu Lys His Pro Asp Ser Thr 85 90 95 gga cga cgg tct tgg gat ccg 309 Gly Arg Arg Ser Trp Asp Pro 100 135 103 PRT Toxoplasma gondii 135 Arg Gly His Thr Gly Glu Arg Trp Ser Asp Arg Glu Gly Glu Ser Glu 1 5 10 15 Met Cys Ser Gly Gly Gln Met Glu Lys Arg Glu Ser Arg Arg Val Ser 20 25 30 Phe Ala Asp Glu Glu Met Arg Asn Pro Thr Glu Asn Leu Lys Val Asp 35 40 45 Ala Asn Cys Val Leu Glu Gly Leu Ser Thr Ser Val Cys Ala Arg Arg 50 55 60 Leu Lys Arg Gln Lys Arg Thr Ala Gly Gln Ser Gly Phe Leu Ala Ile 65 70 75 80 Arg Asn Val Gln Gly Thr Ala Thr Ala Leu Lys His Pro Asp Ser Thr 85 90 95 Gly Arg Arg Ser Trp Asp Pro 100 136 534 DNA Toxoplasma gondii CDS (1)..(534) 136 cgg atc gag gct gaa atc gct agg cag aag gag cgg gaa gcc aaa ctg 48 Arg Ile Glu Ala Glu Ile Ala Arg Gln Lys Glu Arg Glu Ala Lys Leu 1 5 10 15 cgt cgc agg ctt gct gcg gtc gtg gcc tca atg ctg gta gca gcg agc 96 Arg Arg Arg Leu Ala Ala Val Val Ala Ser Met Leu Val Ala Ala Ser 20 25 30 ctc tac ggc ttg aac tcg ttc ctc cac ggt tct gac aag gag att tct 144 Leu Tyr Gly Leu Asn Ser Phe Leu His Gly Ser Asp Lys Glu Ile Ser 35 40 45 tcg atg cca tcc tct atc gac aaa aaa cca gat tcc ccc ttt gcc gca 192 Ser Met Pro Ser Ser Ile Asp Lys Lys Pro Asp Ser Pro Phe Ala Ala 50 55 60 cag ctg ggc acc tcg ctc gag tca gaa att ggt ata ccc gaa gaa aaa 240 Gln Leu Gly Thr Ser Leu Glu Ser Glu Ile Gly Ile Pro Glu Glu Lys 65 70 75 80 gca att cct gag gcg gcc gac ata agc agt ttt att gag aat ctt tcc 288 Ala Ile Pro Glu Ala Ala Asp Ile Ser Ser Phe Ile Glu Asn Leu Ser 85 90 95 gcg acg gtg gca ggc aat tct gtg caa gcc cag agc atc ggc ttt gtg 336 Ala Thr Val Ala Gly Asn Ser Val Gln Ala Gln Ser Ile Gly Phe Val 100 105 110 ttg aca gtt gtt gta ctt ggt ctt gtc gcc ttc tca ctc aag gct gct 384 Leu Thr Val Val Val Leu Gly Leu Val Ala Phe Ser Leu Lys Ala Ala 115 120 125 cga cgt tcc tcg cca aga gag gag cag gca ttc agc ctg ccg gca cac 432 Arg Arg Ser Ser Pro Arg Glu Glu Gln Ala Phe Ser Leu Pro Ala His 130 135 140 ccg cct cgc gag gaa aaa tca aaa tac ctg ctg aag ccg ccc cag cag 480 Pro Pro Arg Glu Glu Lys Ser Lys Tyr Leu Leu Lys Pro Pro Gln Gln 145 150 155 160 ccc aag ccc agg cgg ctc aaa agg cag ctc cgc aag tac cga caa agg 528 Pro Lys Pro Arg Arg Leu Lys Arg Gln Leu Arg Lys Tyr Arg Gln Arg 165 170 175 gtg ctg 534 Val Leu 137 178 PRT Toxoplasma gondii 137 Arg Ile Glu Ala Glu Ile Ala Arg Gln Lys Glu Arg Glu Ala Lys Leu 1 5 10 15 Arg Arg Arg Leu Ala Ala Val Val Ala Ser Met Leu Val Ala Ala Ser 20 25 30 Leu Tyr Gly Leu Asn Ser Phe Leu His Gly Ser Asp Lys Glu Ile Ser 35 40 45 Ser Met Pro Ser Ser Ile Asp Lys Lys Pro Asp Ser Pro Phe Ala Ala 50 55 60 Gln Leu Gly Thr Ser Leu Glu Ser Glu Ile Gly Ile Pro Glu Glu Lys 65 70 75 80 Ala Ile Pro Glu Ala Ala Asp Ile Ser Ser Phe Ile Glu Asn Leu Ser 85 90 95 Ala Thr Val Ala Gly Asn Ser Val Gln Ala Gln Ser Ile Gly Phe Val 100 105 110 Leu Thr Val Val Val Leu Gly Leu Val Ala Phe Ser Leu Lys Ala Ala 115 120 125 Arg Arg Ser Ser Pro Arg Glu Glu Gln Ala Phe Ser Leu Pro Ala His 130 135 140 Pro Pro Arg Glu Glu Lys Ser Lys Tyr Leu Leu Lys Pro Pro Gln Gln 145 150 155 160 Pro Lys Pro Arg Arg Leu Lys Arg Gln Leu Arg Lys Tyr Arg Gln Arg 165 170 175 Val Leu 138 423 DNA Toxoplasma gondii misc_feature (6)..(6) n = unknown 138 tggtgntgtt gaggccgcat cgngagggga gacntgctag agccaggggc agagccgcag 60 gtccggtgga ggatgttgtt gagcccccgt cgggagtgga agacctgccg cagccagagg 120 cagaggcgca agtaccgacc aagggtgttg accatgccgc gtcgggaggg gaggacatcg 180 tggagccaga ggcagagccg cagggactgg tggctggcgc tggtgaggcc gcatcgggag 240 gggaggacct gctagagcca ggggcagcgc cgcagggtcc ggtgaaggat gttgatgagg 300 cggcgtcggg agaggaagaa ctgctggagc cagaggcaaa gccgcagggt tcggtggagg 360 atgttgatga ggcagcgtcg ggaggggagg acctgctaga gccagaggca gaggcgcaag 420 tcc 423 139 327 DNA Toxoplasma gondii CDS (1)..(327) 139 cgc tct caa tca aca aag cca ccc gcg cct tca gac gta gag gac aca 48 Arg Ser Gln Ser Thr Lys Pro Pro Ala Pro Ser Asp Val Glu Asp Thr 1 5 10 15 ggc tct tct gac aac ccg ggt gac aat gtg aca gag gac aca act gag 96 Gly Ser Ser Asp Asn Pro Gly Asp Asn Val Thr Glu Asp Thr Thr Glu 20 25 30 agt cca tca cag ggc acc gac ggt tca gca tcc gga ccc ggg tcg act 144 Ser Pro Ser Gln Gly Thr Asp Gly Ser Ala Ser Gly Pro Gly Ser Thr 35 40 45 cat ccg gaa aac gac gcg ggg gaa cat gag gat ggc gcg tca ctg ggg 192 His Pro Glu Asn Asp Ala Gly Glu His Glu Asp Gly Ala Ser Leu Gly 50 55 60 caa gac cag caa gag cgc atg gat aaa tct tcc cta ggc aaa gaa aca 240 Gln Asp Gln Gln Glu Arg Met Asp Lys Ser Ser Leu Gly Lys Glu Thr 65 70 75 80 ccc atg ctc gat cag gga aat tcg tca cca gca aca acg ggg tcc ggt 288 Pro Met Leu Asp Gln Gly Asn Ser Ser Pro Ala Thr Thr Gly Ser Gly 85 90 95 gcc cat gaa aaa aac gag agc gtg tca gga gtt cca gcg 327 Ala His Glu Lys Asn Glu Ser Val Ser Gly Val Pro Ala 100 105 140 109 PRT Toxoplasma gondii 140 Arg Ser Gln Ser Thr Lys Pro Pro Ala Pro Ser Asp Val Glu Asp Thr 1 5 10 15 Gly Ser Ser Asp Asn Pro Gly Asp Asn Val Thr Glu Asp Thr Thr Glu 20 25 30 Ser Pro Ser Gln Gly Thr Asp Gly Ser Ala Ser Gly Pro Gly Ser Thr 35 40 45 His Pro Glu Asn Asp Ala Gly Glu His Glu Asp Gly Ala Ser Leu Gly 50 55 60 Gln Asp Gln Gln Glu Arg Met Asp Lys Ser Ser Leu Gly Lys Glu Thr 65 70 75 80 Pro Met Leu Asp Gln Gly Asn Ser Ser Pro Ala Thr Thr Gly Ser Gly 85 90 95 Ala His Glu Lys Asn Glu Ser Val Ser Gly Val Pro Ala 100 105 141 444 DNA Toxoplasma gondii CDS (1)..(444) 141 ccg gcg cga act ggc gac gcg cag cct gag ggc aga gag ggg cac agc 48 Pro Ala Arg Thr Gly Asp Ala Gln Pro Glu Gly Arg Glu Gly His Ser 1 5 10 15 cca ctg gaa gac gaa ggg aga gat gcg ttt gga aga cgc gct gcg gaa 96 Pro Leu Glu Asp Glu Gly Arg Asp Ala Phe Gly Arg Arg Ala Ala Glu 20 25 30 gac gag aga aac aga gga aat ccg aat gcg gct ggc gag act tcc caa 144 Asp Glu Arg Asn Arg Gly Asn Pro Asn Ala Ala Gly Glu Thr Ser Gln 35 40 45 gac gag gca gag aac gcg caa gcg tcc ctg cgg ttc gct gcg aga gag 192 Asp Glu Ala Glu Asn Ala Gln Ala Ser Leu Arg Phe Ala Ala Arg Glu 50 55 60 aaa cct ctc gaa gtc ctc aga ttc cga gaa gac act gca gac act ctg 240 Lys Pro Leu Glu Val Leu Arg Phe Arg Glu Asp Thr Ala Asp Thr Leu 65 70 75 80 acg tat gca gac tat cca aac agc gtg gag ttc aca ccc gca gac atg 288 Thr Tyr Ala Asp Tyr Pro Asn Ser Val Glu Phe Thr Pro Ala Asp Met 85 90 95 ccg aat gcg aag gac cag acg cct ctg cat gca aag tac aat cac ttt 336 Pro Asn Ala Lys Asp Gln Thr Pro Leu His Ala Lys Tyr Asn His Phe 100 105 110 tgc gcc tac tca tgc tgg ctg acc tcg cgc ttc aac cca gac aac cca 384 Cys Ala Tyr Ser Cys Trp Leu Thr Ser Arg Phe Asn Pro Asp Asn Pro 115 120 125 aac agc cac tgt gga aaa gga aaa aac gag aaa cgc cga ttc gac gac 432 Asn Ser His Cys Gly Lys Gly Lys Asn Glu Lys Arg Arg Phe Asp Asp 130 135 140 gac tac gat ccg 444 Asp Tyr Asp Pro 145 142 148 PRT Toxoplasma gondii 142 Pro Ala Arg Thr Gly Asp Ala Gln Pro Glu Gly Arg Glu Gly His Ser 1 5 10 15 Pro Leu Glu Asp Glu Gly Arg Asp Ala Phe Gly Arg Arg Ala Ala Glu 20 25 30 Asp Glu Arg Asn Arg Gly Asn Pro Asn Ala Ala Gly Glu Thr Ser Gln 35 40 45 Asp Glu Ala Glu Asn Ala Gln Ala Ser Leu Arg Phe Ala Ala Arg Glu 50 55 60 Lys Pro Leu Glu Val Leu Arg Phe Arg Glu Asp Thr Ala Asp Thr Leu 65 70 75 80 Thr Tyr Ala Asp Tyr Pro Asn Ser Val Glu Phe Thr Pro Ala Asp Met 85 90 95 Pro Asn Ala Lys Asp Gln Thr Pro Leu His Ala Lys Tyr Asn His Phe 100 105 110 Cys Ala Tyr Ser Cys Trp Leu Thr Ser Arg Phe Asn Pro Asp Asn Pro 115 120 125 Asn Ser His Cys Gly Lys Gly Lys Asn Glu Lys Arg Arg Phe Asp Asp 130 135 140 Asp Tyr Asp Pro 145 143 928 DNA Toxoplasma gondii CDS (1)..(57) 143 cgg gat ccc gag cgg gac ctc ccg gtg tcc tcg act gct cat aca cca 48 Arg Asp Pro Glu Arg Asp Leu Pro Val Ser Ser Thr Ala His Thr Pro 1 5 10 15 gag gag gat tgattcaccg cagaacttaa cccgtgggac gcagcctcca 97 Glu Glu Asp cagagtctgt ggcggacgaa ggaaatgcag gaacagagag acctggaccg aaaaatggca 157 tggacgatgg gtgtccacgg gagaagacgg atactcgtgg aaagccgggg gaaagcgacg 217 gagggaaatg cgcgacaagc tggaaaagcg agctcacaac gacgaaacac gcactgtgca 277 tccgaacgac aatgacctgt ccttagtaga cgagaggggg taggcaacaa ttcctcagaa 337 gtccaccagc gaccggacag cgaccgcggc agcacgttga gggaggtctt actagcggcc 397 gagactcagg acaacaggag ccctctaccg ccatgcgaca cacgcagaac aacgctttag 457 attaaggtcg aaaaaggaaa cctcaacgca gaacgagtca cttctttccc acaaaagtgc 517 tgtggaaaaa cagcgcatgc ggggctgggt gactcgaaaa tctgggaacg cgtctggcag 577 gcatcctgcc cgaacccgat accagagaaa cggaacccgt actggctgga attcaacagt 637 acggacaaaa aacccaccgt gtaaagtgga caaaagccga caatggaaca actacttggg 697 agaaagcaaa tgctgcgttc accaggccag tgtcacgccg cgtcgtaaag aaggcggctc 757 agcgttgccg gtgtgcctgg cgttgtcgga cggcttccgt gtgtacccaa cagaaaagct 817 tttacactct tactattttc atttggccac gatttctttt ttgcctatct actgtaccta 877 gccacgtcgc cattctaagg aagttgtccc gttgcaacgc agaacgcgga g 928 144 19 PRT Toxoplasma gondii 144 Arg Asp Pro Glu Arg Asp Leu Pro Val Ser Ser Thr Ala His Thr Pro 1 5 10 15 Glu Glu Asp 145 18 DNA Artificial sequence Synthetic Primer 145 cgcttcttgt gtcacctg 18 146 23 DNA Artificial sequence Synthetic Primer 146 gcaccttgtt ctctctcttc gcc 23 147 18 DNA Artificial sequence Synthetic Primer 147 cgaggagacg gtgggagc 18 148 21 DNA Artificial sequence Synthetic Primer 148 tgcccaagat gccgatctct g 21 149 20 DNA Artificial sequence Synthetic Primer 149 tctcccccat cgacgaaaac 20 150 22 DNA Artificial sequence Synthetic Primer 150 gctcatttcc tccgcaattt gg 22 151 23 DNA Artificial sequence Synthetic Primer 151 agctggcaga aataccaaag ctc 23 152 20 DNA Artificial sequence Synthetic Primer 152 tgtcggcaat actgggcatg 20 153 24 DNA Artificial sequence Synthetic Primer 153 actggagtgg aaagtctggt tttg 24 154 23 DNA Artificial sequence Synthetic Primer 154 gacgcagaga agaaagaaga gcc 23 155 22 DNA Artificial sequence Synthetic Primer 155 tccaaaactg tctcgtctcc cc 22 156 21 DNA Artificial sequence Synthetic Primer 156 tctggatacg ccgttccttt g 21 157 25 DNA Artificial sequence Synthetic Primer 157 gacatctacc tgtgagtgaa ccagg 25 158 22 DNA Artificial sequence Synthetic Primer 158 gtcaaaacct tgccagcatc tc 22 159 24 DNA Artificial sequence Synthetic Primer 159 tccgactgaa tgactacctc tttc 24 160 22 DNA Artificial sequence Synthetic Primer 160 tccgaccaag tcctcagtga ac 22 161 20 DNA Artificial sequence Synthetic Primer 161 tgggcatttc ctggaagagg 20 162 21 DNA Artificial sequence Synthetic Primer 162 gaatccatct cgtgcaaacg g 21 163 21 DNA Artificial sequence Synthetic Primer 163 caagacacag ggaaacgttg g 21 164 22 DNA Artificial sequence Synthetic Primer 164 gaaagaatcg cacctcctct cc 22 165 23 DNA Artificial sequence Synthetic Primer 165 tttgagtcta accgccgtat gtc 23 166 23 DNA Artificial sequence Synthetic Primer 166 tcagacgatt ctcccattgt acg 23 167 22 DNA Artificial sequence Synthetic Primer 167 tcgacttggg tccgattgtt ag 22 168 24 DNA Artificial sequence Synthetic Primer 168 gatcttttgc gtgactttgt ctgc 24 169 24 DNA Artificial sequence Synthetic Primer 169 gaagatgctt gtcttgttcg gttc 24 170 23 DNA Artificial sequence Synthetic Primer 170 gaggggtttc cttctttatt gcc 23 171 20 DNA Artificial sequence Synthetic Primer 171 tgttggacat cccgagcatc 20 172 20 DNA Artificial sequence Synthetic Primer 172 ggtccttgtt tttcaggcgg 20 173 22 DNA Artificial sequence Synthetic Primer 173 tcgtgcagac agtgaagcaa tg 22 174 21 DNA Artificial sequence Synthetic Primer 174 ttttgtcagc acagagtggc g 21 175 23 DNA Artificial sequence Synthetic Primer 175 cgcaagtgag ttttggcttt acc 23 176 22 DNA Artificial sequence Synthetic Primer 176 cctggaagag atatgcagac ac 22 177 22 DNA Artificial sequence Synthetic Primer 177 tcaccgttcg ctcttctttc tc 22 178 20 DNA Artificial sequence Synthetic Primer 178 cgactgaagc atggattgcc 20 179 24 DNA Artificial sequence Synthetic Primer 179 acatattcct gaggaggagt tccc 24 180 22 DNA Artificial sequence Synthetic Primer 180 aacacacctc cgacgacacc ac 22 181 22 DNA Artificial sequence Synthetic Primer 181 ctcggcttct ccacatacaa gg 22 182 23 DNA Artificial sequence Synthetic Primer 182 ggatctaggc atttgggttt cac 23 183 21 DNA Artificial sequence Synthetic Primer 183 atcgaagaag ctgaagcgga g 21 184 22 DNA Artificial sequence Synthetic Primer 184 gtgcttgtct ctgacgaaac cc 22 185 22 DNA Artificial sequence Synthetic Primer 185 tatcattgta tcccgtcgtc cc 22 186 21 DNA Artificial sequence Synthetic Primer 186 tgatgcctgg atttgcacaa c 21 187 22 DNA Artificial sequence Synthetic Primer 187 cggatcgctc tgagtctctt tg 22 188 23 DNA Artificial sequence Synthetic Primer 188 atcctgtgtc ttctcttcga ccc 23 189 20 DNA Artificial sequence Synthetic Primer 189 gatcgctctg agtctctttg 20 190 24 DNA Artificial sequence Synthetic Primer 190 acgtgaggga gaagaagaga gtgc 24 191 22 DNA Artificial sequence Synthetic Primer 191 ttcatcgtcg cctctgatgt cc 22 192 23 DNA Artificial sequence Synthetic Primer 192 tgtagacagc gtttagggag tgc 23 193 22 DNA Artificial sequence Synthetic Primer 193 gtccttggaa gtgcagaagc ag 22 194 21 DNA Artificial sequence Synthetic Primer 194 aagcgaggaa aaggaggtgt c 21 195 23 DNA Artificial sequence Synthetic Primer 195 cgggaaggtt ggtgatgtct gtg 23 196 18 DNA Artificial sequence Synthetic Primer 196 cccgaagact ttgacctg 18 197 18 DNA Artificial sequence Synthetic Primer 197 agtggcatag gaggctgg 18 198 23 DNA Artificial sequence Synthetic Primer 198 gcaccttcaa tgccacaggt atc 23 199 22 DNA Artificial sequence Synthetic Primer 199 tcgtgtgctt ctcgcttctc tg 22 200 25 DNA Artificial sequence Synthetic Primer 200 cactgtcgat cagaagaagg cttac 25 201 20 DNA Artificial sequence Synthetic Primer 201 gctccgtggg cacatttttg 20 202 25 DNA Artificial sequence Synthetic Primer 202 cagtttacga ggtacaaggc aacag 25 203 22 DNA Artificial sequence Synthetic Primer 203 gattgcgtgg gcagtgtaga ag 22 204 23 DNA Artificial sequence Synthetic Primer 204 tgtttgtttc cccagtcaac gac 23 205 24 DNA Artificial sequence Synthetic Primer 205 cggaagaggt tgttggactc cttc 24 206 25 DNA Artificial sequence Synthetic Primer 206 caaccgagag agaagagagg aacag 25 207 22 DNA Artificial sequence Synthetic Primer 207 tggggagaac agcagacatc ag 22 208 22 DNA Artificial sequence Synthetic Primer 208 ggatgaacac tggtgcatca tg 22 209 15 DNA Artificial sequence Synthetic Primer 209 cgacttggtc cgctc 15 210 18 DNA Artificial sequence Synthetic Primer 210 cggcggcaac aaatgggc 18 211 22 DNA Artificial sequence Synthetic Primer 211 gtccgagata tgaggatgcg ac 22 212 21 DNA Artificial sequence Synthetic Primer 212 tcagagcacc attgttgcga c 21 213 22 DNA Artificial sequence Synthetic Primer 213 tttgacgctc aagtggaggc tg 22 214 19 DNA Artificial sequence Synthetic Primer 214 gcctgcaacg ctcgatggc 19 215 23 DNA Artificial sequence Synthetic Primer 215 cttcttgact accttcacgt ctg 23 216 18 DNA Artificial sequence Synthetic Primer 216 aaggacaagc ctggtttg 18 217 18 DNA Artificial sequence Synthetic Primer 217 tttgcccttc gcacaatc 18 218 22 DNA Artificial sequence Synthetic Primer 218 ccagttttgc cagaggaaga cc 22 219 22 DNA Artificial sequence Synthetic Primer 219 atccgtcaat gcaggtttca tc 22 220 23 DNA Artificial sequence Synthetic Primer 220 agacaccaga gacagcagca gtc 23 221 23 DNA Artificial sequence Synthetic Primer 221 acttcgcccg acaatcgctt tcc 23 222 18 DNA Artificial sequence Synthetic Primer 222 cgatcctccc gagggacc 18 223 22 DNA Artificial sequence Synthetic Primer 223 gcctttacgc attcaagtcg tg 22 224 20 DNA Artificial sequence Synthetic Primer 224 ttcagcgggt ctttcctcac 20 225 22 DNA Artificial sequence Synthetic Primer 225 caacgagaaa gatggagctt cg 22 226 21 DNA Artificial sequence Synthetic Primer 226 aacttcttgc acttggtccc g 21 227 23 DNA Artificial sequence Synthetic Primer 227 aagcgaggaa aaggaggtgt ctc 23 228 21 DNA Artificial sequence Synthetic Primer 228 ggaaggttgg tgatgtctgt g 21 229 23 DNA Artificial sequence Synthetic Primer 229 tcccccagga attgttgaaa cag 23 230 25 DNA Artificial sequence Synthetic Primer 230 actaccgaca acgtctcagt ccttc 25 231 22 DNA Artificial sequence Synthetic Primer 231 cgtgcgtctg tgaggaaaag tg 22 232 22 DNA Artificial sequence Synthetic Primer 232 ttgttgctcg tgttgcaggt gc 22 233 20 DNA Artificial sequence Synthetic Primer 233 ttgttctcga acccgcagag 20 234 20 DNA Artificial sequence Synthetic Primer 234 tggcaagaga ccgaatcgtg 20 235 20 DNA Artificial sequence Synthetic Primer 235 aaacttggca aaggggaacg 20 236 21 DNA Artificial sequence Synthetic Primer 236 tgctgtggag aatgatggct g 21 237 17 DNA Artificial sequence Synthetic Primer 237 tttccgacga agctgcc 17 238 19 DNA Artificial sequence Synthetic Primer 238 gactccaacg aaagcctcg 19 239 20 DNA Artificial sequence Synthetic Primer 239 ggaaagggat aaagacgccg 20 240 24 DNA Artificial sequence Synthetic Primer 240 aagcagagga gagacgagac gaag 24 241 24 DNA Artificial sequence Synthetic Primer 241 ctgcaccatt tctcacttct tgtg 24 242 24 DNA Artificial sequence Synthetic Primer 242 gcaaaagcgg actcgattct attg 24 243 20 DNA Artificial sequence Synthetic Primer 243 tgtggcagag caaaaggctc 20 244 22 DNA Artificial sequence Synthetic Primer 244 ctgtggatgc tcctttgcga ct 22 245 20 DNA Artificial sequence Synthetic Primer 245 cgaggcaccc gaagaatttg 20 246 22 DNA Artificial sequence Synthetic Primer 246 cttctcaggt tcacttcctg cg 22 247 21 DNA Artificial sequence Synthetic Primer 247 tcacgcaacg aacaagtcct c 21 248 20 DNA Artificial sequence Synthetic Primer 248 cccatttttg cttggcttgc 20 249 20 DNA Artificial sequence Synthetic Primer 249 agcggcaaac cagttcgttg 20 250 20 DNA Artificial sequence Synthetic Primer 250 caccaccttt ttcgttgcgg 20 251 16 DNA Artificial sequence Synthetic Primer 251 cggcgactca gatggg 16 252 23 DNA Artificial sequence Synthetic Primer 252 ggggctgtgt cttctctatt tcg 23 253 20 DNA Artificial sequence Synthetic Primer 253 aagcaaacag gctcggaagc 20 254 20 DNA Artificial sequence Synthetic Primer 254 tcatgttgga ggcgtcgttc 20 255 21 DNA Artificial sequence Synthetic Primer 255 tgtgcagtgg aggacaaatg g 21 256 21 DNA Artificial sequence Synthetic Primer 256 gaatcagggt gttttagggc g 21 257 19 DNA Artificial sequence Synthetic Primer 257 attctgtgca agcccagag 19 258 20 DNA Artificial sequence Synthetic Primer 258 cgaccaaggg tgttgaccat 20 259 22 DNA Artificial sequence Synthetic Primer 259 ctaggcaaag aaacacccat gc 22 260 18 DNA Artificial sequence Synthetic Primer 260 cgctggaact cctgacac 18 261 21 DNA Artificial sequence Synthetic Primer 261 acgaagggag agatgcgttt g 21 262 20 DNA Artificial sequence Synthetic Primer 262 tggctgtttg ggttgtctgg 20 263 20 DNA Artificial sequence Synthetic Primer 263 tcaccgcaga acttaacccg 20 264 20 DNA Artificial sequence Synthetic Primer 264 ctcgcttttc cagcttgtcg 20 265 311 DNA Toxoplasma gondii CDS (1)..(288) 265 cgg gat cca gct gca cct aac agc aca cag gct gtg gca gcc gct cgt 48 Arg Asp Pro Ala Ala Pro Asn Ser Thr Gln Ala Val Ala Ala Ala Arg 1 5 10 15 acc gtg gta gtg atg aaa acc gac gca gaa gtg tcc ggt gac aac ctc 96 Thr Val Val Val Met Lys Thr Asp Ala Glu Val Ser Gly Asp Asn Leu 20 25 30 agt cag ccg ggt agg cgt ccg ccg tcg cca aag ccg caa acg acg aag 144 Ser Gln Pro Gly Arg Arg Pro Pro Ser Pro Lys Pro Gln Thr Thr Lys 35 40 45 ttt ccg cgg aga gag tca cca gac cgc agg ggg acg agg cgg aga act 192 Phe Pro Arg Arg Glu Ser Pro Asp Arg Arg Gly Thr Arg Arg Arg Thr 50 55 60 gaa agc cga ggc gct gtt agc agg gta tgg cca ggg gaa aac cag cga 240 Glu Ser Arg Gly Ala Val Ser Arg Val Trp Pro Gly Glu Asn Gln Arg 65 70 75 80 aga cgg tct gcc gtc gac gat tcg ata ccg gct aac ccc atc gct ttg 288 Arg Arg Ser Ala Val Asp Asp Ser Ile Pro Ala Asn Pro Ile Ala Leu 85 90 95 aacgcgtggc gccctgcgat ccg 311 266 96 PRT Toxoplasma gondii 266 Arg Asp Pro Ala Ala Pro Asn Ser Thr Gln Ala Val Ala Ala Ala Arg 1 5 10 15 Thr Val Val Val Met Lys Thr Asp Ala Glu Val Ser Gly Asp Asn Leu 20 25 30 Ser Gln Pro Gly Arg Arg Pro Pro Ser Pro Lys Pro Gln Thr Thr Lys 35 40 45 Phe Pro Arg Arg Glu Ser Pro Asp Arg Arg Gly Thr Arg Arg Arg Thr 50 55 60 Glu Ser Arg Gly Ala Val Ser Arg Val Trp Pro Gly Glu Asn Gln Arg 65 70 75 80 Arg Arg Ser Ala Val Asp Asp Ser Ile Pro Ala Asn Pro Ile Ala Leu 85 90 95 267 303 DNA Toxoplasma gondii CDS (1)..(303) 267 gac gaa gct ctt cct ctc ttt gga gca aac gat gga acc tca gtt cgg 48 Asp Glu Ala Leu Pro Leu Phe Gly Ala Asn Asp Gly Thr Ser Val Arg 1 5 10 15 ctc tcc ctc gac cgc agc gtc ctg ctt gtt ctc gaa ccc gca gag ccc 96 Leu Ser Leu Asp Arg Ser Val Leu Leu Val Leu Glu Pro Ala Glu Pro 20 25 30 ctg cta tcc tct tgg ccc cac ccg ggg aga aga gac act ttt ctt gaa 144 Leu Leu Ser Ser Trp Pro His Pro Gly Arg Arg Asp Thr Phe Leu Glu 35 40 45 ggc gat ggc gcg ggc atc ccg tct cct tca tct cgg ccg agt cgc gcg 192 Gly Asp Gly Ala Gly Ile Pro Ser Pro Ser Ser Arg Pro Ser Arg Ala 50 55 60 gcc gac cat tac acg aga ctc tcc acg att cgg tct ctt gcc agg gat 240 Ala Asp His Tyr Thr Arg Leu Ser Thr Ile Arg Ser Leu Ala Arg Asp 65 70 75 80 gga gag gtc gac tcc gag ctg gcg ggg gga ccg cag gaa aga gaa agt 288 Gly Glu Val Asp Ser Glu Leu Ala Gly Gly Pro Gln Glu Arg Glu Ser 85 90 95 gtc aga gtg gat ccg 303 Val Arg Val Asp Pro 100 268 101 PRT Toxoplasma gondii 268 Asp Glu Ala Leu Pro Leu Phe Gly Ala Asn Asp Gly Thr Ser Val Arg 1 5 10 15 Leu Ser Leu Asp Arg Ser Val Leu Leu Val Leu Glu Pro Ala Glu Pro 20 25 30 Leu Leu Ser Ser Trp Pro His Pro Gly Arg Arg Asp Thr Phe Leu Glu 35 40 45 Gly Asp Gly Ala Gly Ile Pro Ser Pro Ser Ser Arg Pro Ser Arg Ala 50 55 60 Ala Asp His Tyr Thr Arg Leu Ser Thr Ile Arg Ser Leu Ala Arg Asp 65 70 75 80 Gly Glu Val Asp Ser Glu Leu Ala Gly Gly Pro Gln Glu Arg Glu Ser 85 90 95 Val Arg Val Asp Pro 100 269 236 DNA Toxoplasma gondii CDS (1)..(234) 269 cgc gga gag ggg gag act gag aga ggg cag aat gag gag act cac gca 48 Arg Gly Glu Gly Glu Thr Glu Arg Gly Gln Asn Glu Glu Thr His Ala 1 5 10 15 acg aac aag tcc tca ggc gtc gcc agt ttg gag gca cca gcg tcg ttc 96 Thr Asn Lys Ser Ser Gly Val Ala Ser Leu Glu Ala Pro Ala Ser Phe 20 25 30 gcg cag gag ggc gac gga ggg cgg aga gaa gaa gca agc caa gca aaa 144 Ala Gln Glu Gly Asp Gly Gly Arg Arg Glu Glu Ala Ser Gln Ala Lys 35 40 45 atg ggg acg tct tcc ccg tcg aat cag gtg atc aac gtt gta gac gaa 192 Met Gly Thr Ser Ser Pro Ser Asn Gln Val Ile Asn Val Val Asp Glu 50 55 60 gac gag gag gac gac gag gaa gca gag gcg caa gag gca ccc gg 236 Asp Glu Glu Asp Asp Glu Glu Ala Glu Ala Gln Glu Ala Pro 65 70 75 270 78 PRT Toxoplasma gondii 270 Arg Gly Glu Gly Glu Thr Glu Arg Gly Gln Asn Glu Glu Thr His Ala 1 5 10 15 Thr Asn Lys Ser Ser Gly Val Ala Ser Leu Glu Ala Pro Ala Ser Phe 20 25 30 Ala Gln Glu Gly Asp Gly Gly Arg Arg Glu Glu Ala Ser Gln Ala Lys 35 40 45 Met Gly Thr Ser Ser Pro Ser Asn Gln Val Ile Asn Val Val Asp Glu 50 55 60 Asp Glu Glu Asp Asp Glu Glu Ala Glu Ala Gln Glu Ala Pro 65 70 75 271 423 DNA Toxoplasma gondii CDS (1)..(423) 271 cgc gga att ccg gat cag cgt agc agt cgc agc cac act gga gtg gaa 48 Arg Gly Ile Pro Asp Gln Arg Ser Ser Arg Ser His Thr Gly Val Glu 1 5 10 15 agt ctg gtt ttg ccc tcc aga ggg gag gaa gag gcg aga gag gag acg 96 Ser Leu Val Leu Pro Ser Arg Gly Glu Glu Glu Ala Arg Glu Glu Thr 20 25 30 tct gca acg cgc cag atg ccg acg ctt ctc tct tcg ccg agg cct cca 144 Ser Ala Thr Arg Gln Met Pro Thr Leu Leu Ser Ser Pro Arg Pro Pro 35 40 45 ctc gcg ctg ggg ttg gga gac gag tct ccc tgc gga gag tgg gtg tcg 192 Leu Ala Leu Gly Leu Gly Asp Glu Ser Pro Cys Gly Glu Trp Val Ser 50 55 60 ccg aat gac atg gtt tct gcg ttg tcc ctc tgg gaa gca ggc gag gct 240 Pro Asn Asp Met Val Ser Ala Leu Ser Leu Trp Glu Ala Gly Glu Ala 65 70 75 80 tgg cag ttc aag aca gcg aaa att ctt gac tct ttc gaa ggg gag acc 288 Trp Gln Phe Lys Thr Ala Lys Ile Leu Asp Ser Phe Glu Gly Glu Thr 85 90 95 cca gaa ggg gag gga tgc ggc gca cag gaa aag gac agc cgc atg caa 336 Pro Glu Gly Glu Gly Cys Gly Ala Gln Glu Lys Asp Ser Arg Met Gln 100 105 110 gct ggt gcg act ccc ggt gaa cgt gga ggg gcg gtc gac gaa ggt gtg 384 Ala Gly Ala Thr Pro Gly Glu Arg Gly Gly Ala Val Asp Glu Gly Val 115 120 125 gag ctt ggc tct tct ttc ttc tct gcg tct gaa gat ccg 423 Glu Leu Gly Ser Ser Phe Phe Ser Ala Ser Glu Asp Pro 130 135 140 272 141 PRT Toxoplasma gondii 272 Arg Gly Ile Pro Asp Gln Arg Ser Ser Arg Ser His Thr Gly Val Glu 1 5 10 15 Ser Leu Val Leu Pro Ser Arg Gly Glu Glu Glu Ala Arg Glu Glu Thr 20 25 30 Ser Ala Thr Arg Gln Met Pro Thr Leu Leu Ser Ser Pro Arg Pro Pro 35 40 45 Leu Ala Leu Gly Leu Gly Asp Glu Ser Pro Cys Gly Glu Trp Val Ser 50 55 60 Pro Asn Asp Met Val Ser Ala Leu Ser Leu Trp Glu Ala Gly Glu Ala 65 70 75 80 Trp Gln Phe Lys Thr Ala Lys Ile Leu Asp Ser Phe Glu Gly Glu Thr 85 90 95 Pro Glu Gly Glu Gly Cys Gly Ala Gln Glu Lys Asp Ser Arg Met Gln 100 105 110 Ala Gly Ala Thr Pro Gly Glu Arg Gly Gly Ala Val Asp Glu Gly Val 115 120 125 Glu Leu Gly Ser Ser Phe Phe Ser Ala Ser Glu Asp Pro 130 135 140 273 514 DNA Toxoplasma gondii CDS (1)..(513) 273 cgg gat cag gct tct atg cca ctg ccc ccg gcc ccc gaa gac ttt gac 48 Arg Asp Gln Ala Ser Met Pro Leu Pro Pro Ala Pro Glu Asp Phe Asp 1 5 10 15 ctg cct cct atg cca ctg ccc gaa gca ccc gaa gac ttt gac cag gct 96 Leu Pro Pro Met Pro Leu Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala 20 25 30 cct atg cca ctg ccc gag gca ccc gaa gac ttt gac cag gct cct atg 144 Pro Met Pro Leu Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala Pro Met 35 40 45 cca ctg ccc gag gca ccc gaa gac ttt gac cag cct cct atg cca ctg 192 Pro Leu Pro Glu Ala Pro Glu Asp Phe Asp Gln Pro Pro Met Pro Leu 50 55 60 ccc gag gca ccc gaa gac ttt gac cag gct cct atg cca ctg ccc gaa 240 Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala Pro Met Pro Leu Pro Glu 65 70 75 80 gca ccc gaa gtc ttt gac cag gct cct atg cca ctg ccc gag gca ccc 288 Ala Pro Glu Val Phe Asp Gln Ala Pro Met Pro Leu Pro Glu Ala Pro 85 90 95 gaa gtc ttt gac cag gct cct atg cca ctg ccc gaa gca ccc gaa gac 336 Glu Val Phe Asp Gln Ala Pro Met Pro Leu Pro Glu Ala Pro Glu Asp 100 105 110 ttt gac cag gct cct atg cca ctg ccc gaa gca ccc gaa gtc ttt gac 384 Phe Asp Gln Ala Pro Met Pro Leu Pro Glu Ala Pro Glu Val Phe Asp 115 120 125 cag gct cct atg cca ctg ccc gag gca ccc gaa gac ttt gac cag gct 432 Gln Ala Pro Met Pro Leu Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala 130 135 140 cct atg cca gtg ccc gag gca ccc gaa gac ttt gac cag gct cct gag 480 Pro Met Pro Val Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala Pro Glu 145 150 155 160 cca ctg ccc gag gca gcc gaa gaa ttt gat ccc g 514 Pro Leu Pro Glu Ala Ala Glu Glu Phe Asp Pro 165 170 274 171 PRT Toxoplasma gondii 274 Arg Asp Gln Ala Ser Met Pro Leu Pro Pro Ala Pro Glu Asp Phe Asp 1 5 10 15 Leu Pro Pro Met Pro Leu Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala 20 25 30 Pro Met Pro Leu Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala Pro Met 35 40 45 Pro Leu Pro Glu Ala Pro Glu Asp Phe Asp Gln Pro Pro Met Pro Leu 50 55 60 Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala Pro Met Pro Leu Pro Glu 65 70 75 80 Ala Pro Glu Val Phe Asp Gln Ala Pro Met Pro Leu Pro Glu Ala Pro 85 90 95 Glu Val Phe Asp Gln Ala Pro Met Pro Leu Pro Glu Ala Pro Glu Asp 100 105 110 Phe Asp Gln Ala Pro Met Pro Leu Pro Glu Ala Pro Glu Val Phe Asp 115 120 125 Gln Ala Pro Met Pro Leu Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala 130 135 140 Pro Met Pro Val Pro Glu Ala Pro Glu Asp Phe Asp Gln Ala Pro Glu 145 150 155 160 Pro Leu Pro Glu Ala Ala Glu Glu Phe Asp Pro 165 170 275 16 DNA Artificial sequence Synthetic Primer 275 tgcttctcaa aagccg 16 276 21 DNA Artificial sequence Synthetic Primer 276 cgattgcctg caagaagtgt g 21 277 20 DNA Artificial sequence Synthetic Primer 277 acagttttct ccatttcagg 20 278 19 DNA Artificial sequence Synthetic Primer 278 atatactttg cgtgggcgg 19 279 17 DNA Artificial sequence Synthetic Primer 279 tcctgggttt gatgctg 17 280 20 DNA Artificial sequence Synthetic Primer 280 ctgttctgaa aacggtgcgg 20 281 18 DNA Artificial sequence Synthetic Primer 281 gaaaacggtg ccctaaag 18 282 1225 DNA Toxoplasma gondii CDS (1)..(87) 282 ggt cga gtg tcg cag aaa aag acg ctt gtc tgt gcc cgg cgt aga caa 48 Gly Arg Val Ser Gln Lys Lys Thr Leu Val Cys Ala Arg Arg Arg Gln 1 5 10 15 tct ctt cgg cct ctc gga cga acc gag ttt tca cgg tga accttttgtg 97 Ser Leu Arg Pro Leu Gly Arg Thr Glu Phe Ser Arg 20 25 cttacttttc gtctcagact gtgttgttgt tccctgcttc tcaaaagccg cccttccctc 157 acttcttgtt cgccgattgc cttcaagaag tgtggagttc ccttcctttt ttccgggttc 217 tccggaagcc tcctgtagca aaatgcgctg aaattttgga cacttctcga cggtgtctcg 277 ctttaggacg gacctcatgg tctttagggc accgttttct ttcacttttt ctaggaacat 337 cacagttttc tccatttcag ggaacgaaca atctgcaagc gtccacttgt cctgtggctg 397 ctgggctcgg atgccgcctc tgtttagcaa ttgtagcagg caccggatgg caagctaggt 457 ccacttcact gcagtttcaa cttccaaacc aaggcatctc aatttgtatc gtgttctctg 517 tcaacaagct gttgaacctg tcgacggagt gtcgtcccgg ctcctatccc gcgttcgcaa 577 gccgcaccgt tttcagaaca gtgttccccg tggtgttgaa agcgggctgc gaagcgcgag 637 cgtttcgttt tgtggttttt tctgggaaac gatggggatc tcttcgtgtg gcgagacgct 697 tgcctcctgt ttcaaggcgg tgaagtccgg aaccgttgac ttcaaggggc aggagcgagt 757 atactcgtgg ttgatatact ttgcgtgggc gggtggcctc agcgggtttt tcgtcggagg 817 gattctggaa gacttcacgg tcacagtgta cacgatcttg atgtgcatgg ccattgcggc 877 gattctctgt tttccgtcgt ggccatgttt ccacagacac cctgtcgagt ggacgccgca 937 cgaccccgcc aggctggctg ctctcttcac gcagcatcaa acccaggaag aaactcctca 997 gaaaggtgcg gggaaaaaac gagggaagaa gagcgctgaa gtgcaacgga aaaactgagt 1057 gtgtgtgcgt atgtagacaa gtgagtcttc ccagagttcg tccggattgt tgcgtggatc 1117 gtgtcaactg gacttctcgt tcgtcaaaga cctggtcgtc tgacccatct gctctccata 1177 aaaaagcttg ttaacgctcc taaaaaaaaa aaaaaaaaaa aaaaaaaa 1225 283 28 PRT Toxoplasma gondii 283 Gly Arg Val Ser Gln Lys Lys Thr Leu Val Cys Ala Arg Arg Arg Gln 1 5 10 15 Ser Leu Arg Pro Leu Gly Arg Thr Glu Phe Ser Arg 20 25 284 1225 DNA Toxoplasma gondii 284 tttttttttt tttttttttt tttttttagg agcgttaaca agctttttta tggagagcag 60 atgggtcaga cgaccaggtc tttgacgaac gagaagtcca gttgacacga tccacgcaac 120 aatccggacg aactctggga agactcactt gtctacatac gcacacacac tcagtttttc 180 cgttgcactt cagcgctctt cttccctcgt tttttccccg cacctttctg aggagtttct 240 tcctgggttt gatgctgcgt gaagagagca gccagcctgg cggggtcgtg cggcgtccac 300 tcgacagggt gtctgtggaa acatggccac gacggaaaac agagaatcgc cgcaatggcc 360 atgcacatca agatcgtgta cactgtgacc gtgaagtctt ccagaatccc tccgacgaaa 420 aacccgctga ggccacccgc ccacgcaaag tatatcaacc acgagtatac tcgctcctgc 480 cccttgaagt caacggttcc ggacttcacc gccttgaaac aggaggcaag cgtctcgcca 540 cacgaagaga tccccatcgt ttcccagaaa aaaccacaaa acgaaacgct cgcgcttcgc 600 agcccgcttt caacaccacg gggaacactg ttctgaaaac ggtgcggctt gcgaacgcgg 660 gataggagcc gggacgacac tccgtcgaca ggttcaacag cttgttgaca gagaacacga 720 tacaaattga gatgccttgg tttggaagtt gaaactgcag tgaagtggac ctagcttgcc 780 atccggtgcc tgctacaatt gctaaacaga ggcggcatcc gagcccagca gccacaggac 840 aagtggacgc ttgcagattg ttcgttccct gaaatggaga aaactgtgat gttcctagaa 900 aaagtgaaag aaaacggtgc cctaaagacc atgaggtccg tcctaaagcg agacaccgtc 960 gagaagtgtc caaaatttca gcgcattttg ctacaggagg cttccggaga acccggaaaa 1020 aaggaaggga actccacact tcttgaaggc aatcggcgaa caagaagtga gggaagggcg 1080 gcttttgaga agcagggaac aacaacacag tctgagacga aaagtaagca caaaaggttc 1140 accgtgaaaa ctcggttcgt ccgagaggcc gaagagattg tctacgccgg gcacagacaa 1200 gcgtcttttt ctgcgacact cgacc 1225 285 20 DNA Artificial sequence Synthetic Primer 285 gggcgagaac atcaccattg 20 286 19 DNA Artificial sequence Synthetic Primer 286 acacgaagga cctgtatgg 19 287 19 DNA Artificial sequence Synthetic Primer 287 gtgcttcgat ttgaatgcg 19 288 17 DNA Artificial sequence Synthetic Primer 288 tcaaatcgaa gcacatg 17 289 19 DNA Artificial sequence Synthetic Primer 289 tttcccagac cttgctgtc 19 290 20 DNA Artificial sequence Synthetic Primer 290 tcattcaggt ccatcgtcgg 20 291 20 DNA Artificial sequence Synthetic Primer 291 cgaggcacaa gtctgcaatg 20 292 1573 DNA Toxoplasma gondii CDS (1)..(222) 292 gca gcc tct ctc ttc acc ctc cgt aaa aat gaa act cct gac gcc caa 48 Ala Ala Ser Leu Phe Thr Leu Arg Lys Asn Glu Thr Pro Asp Ala Gln 1 5 10 15 gga cga tgt gcg cgg ccg gaa ggt gca gtt ggt ggc ggc ttt cct gga 96 Gly Arg Cys Ala Arg Pro Glu Gly Ala Val Gly Gly Gly Phe Pro Gly 20 25 30 cct gcc gct gca gac tgt gcc ttt cac cgt ggg gaa gga cga caa gga 144 Pro Ala Ala Ala Asp Cys Ala Phe His Arg Gly Glu Gly Arg Gln Gly 35 40 45 tcc ggc gtt ctt ggc caa gtc gcc tct ggg gcg tct gcc cct gtt gga 192 Ser Gly Val Leu Gly Gln Val Ala Ser Gly Ala Ser Ala Pro Val Gly 50 55 60 gtc cga ggt cgg cgg cgt gtg tct gtt tga aagcaacgcg atttgccgct 242 Val Arg Gly Arg Arg Arg Val Ser Val 65 70 tcctcgcgcg acttcgcgcc gacaagtgcc tgtacggcga gacgcttgcg gagcagggac 302 aagtggacat gtggttggac ttctcgaccc tcgaagtcga gattccgatg tgttgcttgg 362 tgcagggggg aaaggttgcg gagcgcgcgc agagcgacct ggcgcaggca ctgaacgcgg 422 tcgacgccca cctgaagacg cgcaccttca tggtgggcga gaacatcacc attgcagact 482 tgtgcctcgt cgcggtgctg agctacggct tccggtccgg caaggtggac gccgcagcgc 542 tgctcgagaa gcgtccgtac ttgaagcgct tctacgagac cgtggtgaat cagaagagct 602 tcaagaagat cttcggcgag gcgaaggcag cgccacaggc cgccgccaag aaggagactc 662 ccaaagccgc ggcgaagcct gcacagagcg ccggcgatga cgaagaaccg gcgaagaagc 722 ctgcagtcaa gtgcgagttg gacttgctcc cagagccgac gatggacctg aatgagtgga 782 agcgcgtgta ctccaacacg aaggacctgt atggcacagc gatgaaatgg ttctgggaac 842 acctcgacgc ggcagggtat tccttgtggt acatgaaata tcagaaactc gagggcgagt 902 gcaccgtcgc gttcgtcacc tcgaaccagc tcggcggctt cctgcagcgg atcgacccgg 962 ccttccgcaa atactccttc ggcgtcgtcg acgtgatggg cgagaacggc tgcttcgaca 1022 tcgagggtgt ctggctgttc cgcggccaag acgtacccag cttgatgaag gaccacccgt 1082 cgtacgagta ccacacttgg cagaaactcg acgtcgccag cgcaaaagac aagcaactcg 1142 tcgcagactt ttggtgcgcg tgcgacgaca tccaaggtcg ccccatcgcc gacagcaagg 1202 tctggaaata aaaggaaata acgcacttcg cgaaacgaag gggcggcaac agaggtgtgt 1262 gtctttggtg ctgtgaaaaa aagcgacgcg taaaaaacgg cgagaaatgt tcgtggcgtg 1322 gcgtgcggtg agaggggtac agtggcgaag ggtcacaaac ccatgtgctt cgatttgaat 1382 gcgcttccat ctgtacacct ggctcttccg tgcgtccttt cagtctctcc taaaaatctc 1442 gtttcacgcg ggtgcagttg cggtacttca ggagcttcgc aggcgccgct cgcgcgcgct 1502 ccccgctcta ggaactctca cacgacccca tttatgtcaa ctcgaaaaaa aaaaaaaaaa 1562 aaaaaaaaaa a 1573 293 73 PRT Toxoplasma gondii 293 Ala Ala Ser Leu Phe Thr Leu Arg Lys Asn Glu Thr Pro Asp Ala Gln 1 5 10 15 Gly Arg Cys Ala Arg Pro Glu Gly Ala Val Gly Gly Gly Phe Pro Gly 20 25 30 Pro Ala Ala Ala Asp Cys Ala Phe His Arg Gly Glu Gly Arg Gln Gly 35 40 45 Ser Gly Val Leu Gly Gln Val Ala Ser Gly Ala Ser Ala Pro Val Gly 50 55 60 Val Arg Gly Arg Arg Arg Val Ser Val 65 70 294 1573 DNA Toxoplasma gondii 294 tttttttttt tttttttttt tttttttcga gttgacataa atggggtcgt gtgagagttc 60 ctagagcggg gagcgcgcgc gagcggcgcc tgcgaagctc ctgaagtacc gcaactgcac 120 ccgcgtgaaa cgagattttt aggagagact gaaaggacgc acggaagagc caggtgtaca 180 gatggaagcg cattcaaatc gaagcacatg ggtttgtgac ccttcgccac tgtacccctc 240 tcaccgcacg ccacgccacg aacatttctc gccgtttttt acgcgtcgct ttttttcaca 300 gcaccaaaga cacacacctc tgttgccgcc ccttcgtttc gcgaagtgcg ttatttcctt 360 ttatttccag accttgctgt cggcgatggg gcgaccttgg atgtcgtcgc acgcgcacca 420 aaagtctgcg acgagttgct tgtcttttgc gctggcgacg tcgagtttct gccaagtgtg 480 gtactcgtac gacgggtggt ccttcatcaa gctgggtacg tcttggccgc ggaacagcca 540 gacaccctcg atgtcgaagc agccgttctc gcccatcacg tcgacgacgc cgaaggagta 600 tttgcggaag gccgggtcga tccgctgcag gaagccgccg agctggttcg aggtgacgaa 660 cgcgacggtg cactcgccct cgagtttctg atatttcatg taccacaagg aataccctgc 720 cgcgtcgagg tgttcccaga accatttcat cgctgtgcca tacaggtcct tcgtgttgga 780 gtacacgcgc ttccactcat tcaggtccat cgtcggctct gggagcaagt ccaactcgca 840 cttgactgca ggcttcttcg ccggttcttc gtcatcgccg gcgctctgtg caggcttcgc 900 cgcggctttg ggagtctcct tcttggcggc ggcctgtggc gctgccttcg cctcgccgaa 960 gatcttcttg aagctcttct gattcaccac ggtctcgtag aagcgcttca agtacggacg 1020 cttctcgagc agcgctgcgg cgtccacctt gccggaccgg aagccgtagc tcagcaccgc 1080 gacgaggcac aagtctgcaa tggtgatgtt ctcgcccacc atgaaggtgc gcgtcttcag 1140 gtgggcgtcg accgcgttca gtgcctgcgc caggtcgctc tgcgcgcgct ccgcaacctt 1200 tcccccctgc accaagcaac acatcggaat ctcgacttcg agggtcgaga agtccaacca 1260 catgtccact tgtccctgct ccgcaagcgt ctcgccgtac aggcacttgt cggcgcgaag 1320 tcgcgcgagg aagcggcaaa tcgcgttgct ttcaaacaga cacacgccgc cgacctcgga 1380 ctccaacagg ggcagacgcc ccagaggcga cttggccaag aacgccggat ccttgtcgtc 1440 cttccccacg gtgaaaggca cagtctgcag cggcaggtcc aggaaagccg ccaccaactg 1500 caccttccgg ccgcgcacat cgtccttggg cgtcaggagt ttcattttta cggagggtga 1560 agagagaggc tgc 1573 295 20 DNA Artificial sequence Synthetic Primer 295 ttatttcccc gcctcgtctc 20 296 20 DNA Artificial sequence Synthetic Primer 296 cctactgtga ctcccatcac 20 297 19 DNA Artificial sequence Synthetic Primer 297 atcaccacta agcgtaggg 19 298 19 DNA Artificial sequence Synthetic Primer 298 tcgaaagaac gaagctgcc 19 299 20 DNA Artificial sequence Synthetic Primer 299 cgaagggtgt catcctctac 20 300 21 DNA Artificial sequence Synthetic Primer 300 tatcgccaac agagtgaacc g 21 301 22 DNA Artificial sequence Synthetic Primer 301 gtggacccaa gcatttgtgt gg 22 302 21 DNA Artificial sequence Synthetic Primer 302 gcgtttcgac agttctatca c 21 303 20 DNA Artificial sequence Synthetic Primer 303 acggaagaag acggagatgg 20 304 20 DNA Artificial sequence Synthetic Primer 304 gagattccct acgcttagtg 20 305 19 DNA Artificial sequence Synthetic Primer 305 gttcgtcttt cgccataac 19 306 2417 DNA Toxoplasma gondii CDS (1)..(27) 306 gtt tcc tcc gtt ctt ctt cgt ttt aaa ctgcaggaag tttctcctcg 47 Val Ser Ser Val Leu Leu Arg Phe Lys 1 5 ccttcgaccg cgtccgggga ctgaggtctg ctgtccacgc aggacttcct cttctccttt 107 ttcgcgccgc cagacgaggt cttcccgact tttcgtctgc acgcttctcc gcatctccgc 167 atctccccat ctccgtcttc ttccgttttt gactgtctgc gctctttctc cgacctcgct 227 cgaacgccgc gattctcgcc ttttatttcc ccgcctcgtc tccggccgtt ccacgcacct 287 tcctcggccg ttgcctcgcg ttcctcgggt gtacagacac ctgagcgctc tgcgttgtcg 347 cagcatttct ctgagccgca acatggggaa tgcgcagcct cgcggcggag gcttcccagg 407 aggctctgaa gaagacaaga agaaggagag aaagagactt gaagctgcgc ctccaacgca 467 cattggaaaa agaaagaaga aaggaaaagg ccccgtcggt cacagcagac ttcctactgt 527 gactcccatc accaagtgtc gcctgcgtct gctccgactc gagcgcataa aagactacct 587 tcttctggag gaagagtata ttctcaacca ggagcagcgg aagccggcgg aggagaagaa 647 cgaagaagat gtgaatcgcg tggacgagct ccgtggatca ccactaagcg tagggaatct 707 cgaggaaatc atcgatgaac agcatgcaat cgtttcttcc tccatcggtc ccgagtacta 767 cgtcaacatc ctctctttcg tcgacaaaga cctgctcgag cctggatgca gtgtccttct 827 tcacaacaaa acgagcagca ttgtcggaat tttgaacgac gaggtggacc ctctcatctc 887 ggtcatgaaa gtggagaagg caccgcttga gacgtatgca gacatcggcg gactggagaa 947 gcagattcag gaggtgaagg aggccgtgga atttcctctc acgcatccgg agttcttcga 1007 cgacatcggt atcagccctc cgaagggtgt catcctctac ggaccccccg ggacaggaaa 1067 gactctgctc gcgaaggccg tggcgaacga gacgtcggct acgttccttc gcgtcgtcgg 1127 aagtgaactc attcaaaaat atttgggaga cggcccgaag ctggtccggg aaatgtttaa 1187 actcgctcac gagcacgcgc cgagcatcgt cttcatcgtc ttcatcgaga gtctagaccc 1247 tgcgctcatt cggcctggac gcattgatcg gaaaattcaa ctccccaatc cggacgcgaa 1307 aaccaagcga aaaatcttcc agatccacac agcgaaaatg accatggccg acgacgtcga 1367 cctcgaggaa tttgttatgg cgaaagacga actgtcgggt gcagatatca aggcgacatg 1427 cacggaggcg gggttgctgg ccttgcgaga gcgacgcatg aaaatcaccc aggaagatct 1487 gcggaaggcg aaggagaagg cgctgtatca gaagaaaggg aacattccag agagtctgta 1547 tctgtgaaga ggcgggagaa aacaatggtg tctccccaga gcgtcgagac agctcgaaga 1607 acgaagctgc ctcttcagca ccctccagat ctgagccagg agcccaactc gatttgtggc 1667 ctcccaagaa ggactgacat ctcgaggcga agaagagact ggaaaatgtc acagcaggct 1727 tcagagacat cttctgctga gaagaaaggc tgtgcgagcg ctttcgactc gtcagttttg 1787 aggcgccgcc ggtagcgcac accctgtggc ttcggtttct ctgtgataga actgtcgaaa 1847 cgctgcgaaa atagaaatga cgaggtcgca ctgcaagaag acaagagaga ttcaaaagaa 1907 aaggttgttt gcccgaaaac ttagcgtctg cgtgtctgat tttttcgagt tgagttgcca 1967 gtgtggacac gcatgatcgc ggagtggggg cactcaaagc gaaaccgttt atcgccaaca 2027 gagtgaaccg ttcagacctt ttttcttggc gcatgcaaga aaaaagatgt gaactgcgta 2087 gtcgcactcg gcgattcccg cgggtgaggg agtgggagta gcgaattcag tcgaaagcga 2147 agaggctttc cagagcgcag acgcgacaga tttgccgaag gaaaaaagtc acgaacgtgt 2207 ctgtttgaga gaagaaccag ggccggcaca ggttctccgt gtatttttta ggaaggatcg 2267 tgttgacagc gacaagaaag ccacacaaat gcttgggtcc acgggagcgc tgtcccccag 2327 acacacgcag aaatacgagt gaaacttact ctgcttcctg cgacaacttt cgcaattacg 2387 agtggaacgc ttcaaaaaaa aaaaaaaaaa 2417 307 9 PRT Toxoplasma gondii 307 Val Ser Ser Val Leu Leu Arg Phe Lys 1 5 308 2417 DNA Toxoplasma gondii 308 tttttttttt tttttttgaa gcgttccact cgtaattgcg aaagttgtcg caggaagcag 60 agtaagtttc actcgtattt ctgcgtgtgt ctgggggaca gcgctcccgt ggacccaagc 120 atttgtgtgg ctttcttgtc gctgtcaaca cgatccttcc taaaaaatac acggagaacc 180 tgtgccggcc ctggttcttc tctcaaacag acacgttcgt gacttttttc cttcggcaaa 240 tctgtcgcgt ctgcgctctg gaaagcctct tcgctttcga ctgaattcgc tactcccact 300 ccctcacccg cgggaatcgc cgagtgcgac tacgcagttc acatcttttt tcttgcatgc 360 gccaagaaaa aaggtctgaa cggttcactc tgttggcgat aaacggtttc gctttgagtg 420 cccccactcc gcgatcatgc gtgtccacac tggcaactca actcgaaaaa atcagacacg 480 cagacgctaa gttttcgggc aaacaacctt ttcttttgaa tctctcttgt cttcttgcag 540 tgcgacctcg tcatttctat tttcgcagcg tttcgacagt tctatcacag agaaaccgaa 600 gccacagggt gtgcgctacc ggcggcgcct caaaactgac gagtcgaaag cgctcgcaca 660 gcctttcttc tcagcagaag atgtctctga agcctgctgt gacattttcc agtctcttct 720 tcgcctcgag atgtcagtcc ttcttgggag gccacaaatc gagttgggct cctggctcag 780 atctggaggg tgctgaagag gcagcttcgt tcttcgagct gtctcgacgc tctggggaga 840 caccattgtt ttctcccgcc tcttcacaga tacagactct ctggaatgtt ccctttcttc 900 tgatacagcg ccttctcctt cgccttccgc agatcttcct gggtgatttt catgcgtcgc 960 tctcgcaagg ccagcaaccc cgcctccgtg catgtcgcct tgatatctgc acccgacagt 1020 tcgtctttcg ccataacaaa ttcctcgagg tcgacgtcgt cggccatggt cattttcgct 1080 gtgtggatct ggaagatttt tcgcttggtt ttcgcgtccg gattggggag ttgaattttc 1140 cgatcaatgc gtccaggccg aatgagcgca gggtctagac tctcgatgaa gacgatgaag 1200 acgatgctcg gcgcgtgctc gtgagcgagt ttaaacattt cccggaccag cttcgggccg 1260 tctcccaaat atttttgaat gagttcactt ccgacgacgc gaaggaacgt agccgacgtc 1320 tcgttcgcca cggccttcgc gagcagagtc tttcctgtcc cggggggtcc gtagaggatg 1380 acacccttcg gagggctgat accgatgtcg tcgaagaact ccggatgcgt gagaggaaat 1440 tccacggcct ccttcacctc ctgaatctgc ttctccagtc cgccgatgtc tgcatacgtc 1500 tcaagcggtg ccttctccac tttcatgacc gagatgagag ggtccacctc gtcgttcaaa 1560 attccgacaa tgctgctcgt tttgttgtga agaaggacac tgcatccagg ctcgagcagg 1620 tctttgtcga cgaaagagag gatgttgacg tagtactcgg gaccgatgga ggaagaaacg 1680 attgcatgct gttcatcgat gatttcctcg agattcccta cgcttagtgg tgatccacgg 1740 agctcgtcca cgcgattcac atcttcttcg ttcttctcct ccgccggctt ccgctgctcc 1800 tggttgagaa tatactcttc ctccagaaga aggtagtctt ttatgcgctc gagtcggagc 1860 agacgcaggc gacacttggt gatgggagtc acagtaggaa gtctgctgtg accgacgggg 1920 ccttttcctt tcttctttct ttttccaatg tgcgttggag gcgcagcttc aagtctcttt 1980 ctctccttct tcttgtcttc ttcagagcct cctgggaagc ctccgccgcg aggctgcgca 2040 ttccccatgt tgcggctcag agaaatgctg cgacaacgca gagcgctcag gtgtctgtac 2100 acccgaggaa cgcgaggcaa cggccgagga aggtgcgtgg aacggccgga gacgaggcgg 2160 ggaaataaaa ggcgagaatc gcggcgttcg agcgaggtcg gagaaagagc gcagacagtc 2220 aaaaacggaa gaagacggag atggggagat gcggagatgc ggagaagcgt gcagacgaaa 2280 agtcgggaag acctcgtctg gcggcgcgaa aaaggagaag aggaagtcct gcgtggacag 2340 cagacctcag tccccggacg cggtcgaagg cgaggagaaa cttcctgcag tttaaaacga 2400 agaagaacgg aggaaac 2417 309 20 DNA Artificial sequence Synthetic Primer 309 cggactgcgt tatcgttacc 20 310 18 DNA Artificial sequence Synthetic Primer 310 ctgttgcctt cggatatg 18 311 1785 DNA Toxoplasma gondii CDS (1)..(75) 311 gaa ccg gtg cac ttt tgc acg tgt acg caa gac agc ttc gca gac aac 48 Glu Pro Val His Phe Cys Thr Cys Thr Gln Asp Ser Phe Ala Asp Asn 1 5 10 15 atc tgg cag cct ccc gct cat ttt tag tcagcaaaaa tggcacccgc 95 Ile Trp Gln Pro Pro Ala His Phe 20 acttgtgcag aggagaaaga aggtggccat gattggctct ggcatgattg gtggcactat 155 gggctacctg tgcgctctcc gtgagctcgc tgacgtcgtt ctctacgatg ttgtcaaagg 215 tatgcccgag ggtaaggctc ttgacctgag ccatgtgacc tccgtggtcg acaccaacgt 275 ttccgtccgt gctgagtact cttacgaggc cgcgctcacc ggtgcggact gcgttatcgt 335 taccgccggt ctgaccaagg tgccgggcaa gcccgactcc gagtggagcc gaaacgatct 395 gctcccgttc aactcgaaga tcattcgcga gatcggtcag aacatcaaga agtactgccc 455 caagaccttc atcatcgtgg tcaccaaccc gctggactgc atggtcaagg tcatgtgcga 515 ggcctctggc gtcccgacca acatgatctg cggtatggcc tgcatgctcg actctggtcg 575 cttccgccga tacgtcgccg acgcgctgtc tgtctctccc cgcgacgtcc aggccaccgt 635 catcggcaca cacggcgact gcatggtccc gcttgtccgg tacattaccg tgaacgacta 695 cccgatccag aagttcatca aggacggcgt agtcacggag aagcagctcg aggagatcgc 755 tgagcacacc aaagtgtctg gcggcgagat cgtccgcttc ctcggccagg gttccgctta 815 ctacgccccc gccgcatccg ctgtcgccat ggcaacatcc ttcttgaacg acgaaaagcg 875 cgtcatcccg tgcagtgtgt actgcaacgg agagtacggc ttgaaggaca tgttcattgg 935 tctcccggcc gtcattggag gcgccggcat cgagcgcgtc atcgagctcg agctgaacga 995 ggaggagaag aagcagttcc agaagtccgt cgacgacgtc atggcgctca acaaggcggt 1055 tgctgctctt caggcgtaag cgttggcaaa acaggagcgg aatgccactt tactgcgcgg 1115 ggcccatgat ttatacacgc gtttgcaacg gaagcgaaaa gacggttccg gttcgcacca 1175 cgcgctcgtc ccgaaaaagg gaagtcgcgg cgctgtcggt caacgctgtg cgggttgcag 1235 gtgcgtgctt aagcatcaca aagtggcaga gccattttgt ccagggaagt agcgtctcaa 1295 acaggtgaac gcgtgcaagc atgagaggca tccgtcgctg cgttcgctca catatccgaa 1355 ggcaacagat tttggtcggc aaaagcctct gcacaaccgt ggcaagatga tggaaacagt 1415 tcgtgtttgg acagcaaccg cgttcgctct cactcaaaac cctgtagtcg agaggggtgt 1475 cgcatgactt ggcttttgtg ggagtgccca aatcgtctgt gttcgaggtg aagatcacat 1535 gtccgctgca gtactgaaaa acacttggtg cgcagaggcg agcgataggt gcgctgactt 1595 tttttttgtt tgttcaagga aggcatcttt ttttttttta ccggttgtcc actgtcatgt 1655 cgaaaacgta gtccgtgtga agtggttggt cccctgttgt cctttgtcta gccgcgcgtg 1715 tctcatggag catttttcaa cgttgcttca aacgaatgct ggtttcaaac aaaaaaaaaa 1775 aaaaaaaaaa 1785 312 24 PRT Toxoplasma gondii 312 Glu Pro Val His Phe Cys Thr Cys Thr Gln Asp Ser Phe Ala Asp Asn 1 5 10 15 Ile Trp Gln Pro Pro Ala His Phe 20 313 1785 DNA Toxoplasma gondii 313 gaaccggtgc acttttgcac gtgtacgcaa gacagcttcg cagacaacat ctggcagcct 60 cccgctcatt tttagtcagc aaaaatggca cccgcacttg tgcagaggag aaagaaggtg 120 gccatgattg gctctggcat gattggtggc actatgggct acctgtgcgc tctccgtgag 180 ctcgctgacg tcgttctcta cgatgttgtc aaaggtatgc ccgagggtaa ggctcttgac 240 ctgagccatg tgacctccgt ggtcgacacc aacgtttccg tccgtgctga gtactcttac 300 gaggccgcgc tcaccggtgc ggactgcgtt atcgttaccg ccggtctgac caaggtgccg 360 ggcaagcccg actccgagtg gagccgaaac gatctgctcc cgttcaactc gaagatcatt 420 cgcgagatcg gtcagaacat caagaagtac tgccccaaga ccttcatcat cgtggtcacc 480 aacccgctgg actgcatggt caaggtcatg tgcgaggcct ctggcgtccc gaccaacatg 540 atctgcggta tggcctgcat gctcgactct ggtcgcttcc gccgatacgt cgccgacgcg 600 ctgtctgtct ctccccgcga cgtccaggcc accgtcatcg gcacacacgg cgactgcatg 660 gtcccgcttg tccggtacat taccgtgaac gactacccga tccagaagtt catcaaggac 720 ggcgtagtca cggagaagca gctcgaggag atcgctgagc acaccaaagt gtctggcggc 780 gagatcgtcc gcttcctcgg ccagggttcc gcttactacg cccccgccgc atccgctgtc 840 gccatggcaa catccttctt gaacgacgaa aagcgcgtca tcccgtgcag tgtgtactgc 900 aacggagagt acggcttgaa ggacatgttc attggtctcc cggccgtcat tggaggcgcc 960 ggcatcgagc gcgtcatcga gctcgagctg aacgaggagg agaagaagca gttccagaag 1020 tccgtcgacg acgtcatggc gctcaacaag gcggttgctg ctcttcaggc gtaagcgttg 1080 gcaaaacagg agcggaatgc cactttactg cgcggggccc atgatttata cacgcgtttg 1140 caacggaagc gaaaagacgg ttccggttcg caccacgcgc tcgtcccgaa aaagggaagt 1200 cgcggcgctg tcggtcaacg ctgtgcgggt tgcaggtgcg tgcttaagca tcacaaagtg 1260 gcagagccat tttgtccagg gaagtagcgt ctcaaacagg tgaacgcgtg caagcatgag 1320 aggcatccgt cgctgcgttc gctcacatat ccgaaggcaa cagattttgg tcggcaaaag 1380 cctctgcaca accgtggcaa gatgatggaa acagttcgtg tttggacagc aaccgcgttc 1440 gctctcactc aaaaccctgt agtcgagagg ggtgtcgcat gacttggctt ttgtgggagt 1500 gcccaaatcg tctgtgttcg aggtgaagat cacatgtccg ctgcagtact gaaaaacact 1560 tggtgcgcag aggcgagcga taggtgcgct gacttttttt ttgtttgttc aaggaaggca 1620 tctttttttt ttttaccggt tgtccactgt catgtcgaaa acgtagtccg tgtgaagtgg 1680 ttggtcccct gttgtccttt gtctagccgc gcgtgtctca tggagcattt ttcaacgttg 1740 cttcaaacga atgctggttt caaacaaaaa aaaaaaaaaa aaaaa 1785 314 18 DNA Artificial sequence Synthetic Primer 314 tctccgactg tggagtgc 18 315 18 DNA Artificial sequence Synthetic Primer 315 gatggcatgg atttgacc 18 316 17 DNA Artificial sequence Synthetic Primer 316 tgaggagacc gaaaagg 17 317 19 DNA Artificial sequence Synthetic Primer 317 tcagtgctct gacgaatcc 19 318 20 DNA Artificial sequence Synthetic Primer 318 gccttcagga gagaagctac 20 319 20 DNA Artificial sequence Synthetic Primer 319 gatcgaagat gacgcatggg 20 320 20 DNA Artificial sequence Synthetic Primer 320 gaaactctgg ggaaaacggc 20 321 20 DNA Artificial sequence Synthetic Primer 321 cttcttcgct ctcaaacatc 20 322 17 DNA Artificial sequence Synthetic Primer 322 atcacggttt gtcgcac 17 323 19 DNA Artificial sequence Synthetic Primer 323 cggacttcct tatgatcgg 19 324 20 DNA Artificial sequence Synthetic Primer 324 agtcggagaa ggcaccatag 20 325 17 DNA Artificial sequence Synthetic Primer 325 ttcctcctcc ttttcgg 17 326 2167 DNA Toxoplasma gondii CDS (1)..(1716) 326 gtg agc acc cgc cgg aga gaa gac acc gag agc gag gcg tgc gtc aac 48 Val Ser Thr Arg Arg Arg Glu Asp Thr Glu Ser Glu Ala Cys Val Asn 1 5 10 15 caa gtc gaa acc atg gag tgc cca act cag gct ggg caa gca tgc ggc 96 Gln Val Glu Thr Met Glu Cys Pro Thr Gln Ala Gly Gln Ala Cys Gly 20 25 30 aac tat ggt gcc ttc tcc gac tgt gga gtg cct ctt cgc ggc ttc gcc 144 Asn Tyr Gly Ala Phe Ser Asp Cys Gly Val Pro Leu Arg Gly Phe Ala 35 40 45 atg gcc ttc ccc gag aac tgc cca gag ctc gtg gcc ttc gcc gcc tgc 192 Met Ala Phe Pro Glu Asn Cys Pro Glu Leu Val Ala Phe Ala Ala Cys 50 55 60 gat gct ccc gcg cct ccc caa gag gac cgc tgc cat tct ttc tcg gcc 240 Asp Ala Pro Ala Pro Pro Gln Glu Asp Arg Cys His Ser Phe Ser Ala 65 70 75 80 tgg tcc aag tgc aca cac ata ccc ggc act act ctg tac gag cag acg 288 Trp Ser Lys Cys Thr His Ile Pro Gly Thr Thr Leu Tyr Glu Gln Thr 85 90 95 cgc tcc tgc gat ggc atg gat ttg acc gag tcc cgc ttc tgc act ccc 336 Arg Ser Cys Asp Gly Met Asp Leu Thr Glu Ser Arg Phe Cys Thr Pro 100 105 110 gac gag gag gtc ggc tcg gac gtt tcc act gac gtc gct tcc gaa tgc 384 Asp Glu Glu Val Gly Ser Asp Val Ser Thr Asp Val Ala Ser Glu Cys 115 120 125 ggt tcc ctc ggc gag ttc ggc gag tgt gtg aac ggc ctt cag gag aga 432 Gly Ser Leu Gly Glu Phe Gly Glu Cys Val Asn Gly Leu Gln Glu Arg 130 135 140 agc tac tcg gac tgc ccc gat cat aag gaa gtc cgt cag tgc tct gac 480 Ser Tyr Ser Asp Cys Pro Asp His Lys Glu Val Arg Gln Cys Ser Asp 145 150 155 160 gaa tcc tgc tct gcc ttc ggc gag tgg tca ccc tgc ggg gaa ccc cag 528 Glu Ser Cys Ser Ala Phe Gly Glu Trp Ser Pro Cys Gly Glu Pro Gln 165 170 175 caa ggc ctg cgt atc cgc aag aga cgt gca tgc gac aac gtg cac tgc 576 Gln Gly Leu Arg Ile Arg Lys Arg Arg Ala Cys Asp Asn Val His Cys 180 185 190 gcc tgt gtc gag gcc gag gtc tgc ggc gat gtc acc cca gag att gag 624 Ala Cys Val Glu Ala Glu Val Cys Gly Asp Val Thr Pro Glu Ile Glu 195 200 205 gag gaa gaa ggc gaa cat ttc ccc cct gaa gaa ggc gag gtc ttg cct 672 Glu Glu Glu Gly Glu His Phe Pro Pro Glu Glu Gly Glu Val Leu Pro 210 215 220 cca tat gaa gag ggt cct ggt gag ggt gag ctt gtt cct ccc gag gag 720 Pro Tyr Glu Glu Gly Pro Gly Glu Gly Glu Leu Val Pro Pro Glu Glu 225 230 235 240 gag atc cct gaa gga gaa cat gtt cct gag gag gaa atc cct gaa gga 768 Glu Ile Pro Glu Gly Glu His Val Pro Glu Glu Glu Ile Pro Glu Gly 245 250 255 gaa cat att cct gaa gag ctc cca gaa ggc gag cat gtt cct gag gag 816 Glu His Ile Pro Glu Glu Leu Pro Glu Gly Glu His Val Pro Glu Glu 260 265 270 gaa atc cct gaa gga gaa cat gtt cct gaa gag gaa atc cct gaa gga 864 Glu Ile Pro Glu Gly Glu His Val Pro Glu Glu Glu Ile Pro Glu Gly 275 280 285 gag cat gtt cct gaa gag ttc cca gaa ggc gag cat gtt cct gag gag 912 Glu His Val Pro Glu Glu Phe Pro Glu Gly Glu His Val Pro Glu Glu 290 295 300 gaa atc cct gaa gga gaa cat gtt cct gaa gag gaa atc cct gaa gga 960 Glu Ile Pro Glu Gly Glu His Val Pro Glu Glu Glu Ile Pro Glu Gly 305 310 315 320 gag cat gtt cct gaa gag ttc cct gaa gga gag cat att cct gag gag 1008 Glu His Val Pro Glu Glu Phe Pro Glu Gly Glu His Ile Pro Glu Glu 325 330 335 ctc cct gaa ggc gag cat atc cct gaa gag ttc cct gaa gga gag cat 1056 Leu Pro Glu Gly Glu His Ile Pro Glu Glu Phe Pro Glu Gly Glu His 340 345 350 att cct gag gag ctc cct gaa ggc gag cat gtt cct gag gag gag atc 1104 Ile Pro Glu Glu Leu Pro Glu Gly Glu His Val Pro Glu Glu Glu Ile 355 360 365 cct gaa gga gag cat att cct gaa gag ttc cca gaa ggc gag cat gtt 1152 Pro Glu Gly Glu His Ile Pro Glu Glu Phe Pro Glu Gly Glu His Val 370 375 380 cct gag gag gaa atc cct gaa gga gaa cat att cct gag gag gag ttc 1200 Pro Glu Glu Glu Ile Pro Glu Gly Glu His Ile Pro Glu Glu Glu Phe 385 390 395 400 cct gaa gga gag cat gtt cct gag gag gag atc cct gaa ggc gag cat 1248 Pro Glu Gly Glu His Val Pro Glu Glu Glu Ile Pro Glu Gly Glu His 405 410 415 gtt cct gag gag gag ctc cct gga gga gaa ctt att cct gag gag gag 1296 Val Pro Glu Glu Glu Leu Pro Gly Gly Glu Leu Ile Pro Glu Glu Glu 420 425 430 atc cct gaa gga gag cat gtt cct gaa gag ctc cct gaa ggc gag cat 1344 Ile Pro Glu Gly Glu His Val Pro Glu Glu Leu Pro Glu Gly Glu His 435 440 445 gtt cct gag gag gag atc cct gaa gga gag cat gtt cct gaa gag gaa 1392 Val Pro Glu Glu Glu Ile Pro Glu Gly Glu His Val Pro Glu Glu Glu 450 455 460 atc cct gaa ggc gag cat gtt cct gag gag gag acc cct gaa gga gaa 1440 Ile Pro Glu Gly Glu His Val Pro Glu Glu Glu Thr Pro Glu Gly Glu 465 470 475 480 cat gct cca gag gaa gag act cct gca cct gag gag acc gaa aag gag 1488 His Ala Pro Glu Glu Glu Thr Pro Ala Pro Glu Glu Thr Glu Lys Glu 485 490 495 gag gaa gaa ggc gtg cca gtc gca gcg att gcc ggt ggt gtc gtc gga 1536 Glu Glu Glu Gly Val Pro Val Ala Ala Ile Ala Gly Gly Val Val Gly 500 505 510 ggt gtg ttg ctc att gct ggt ggt gca ggt gct gcc gtg tac gca aac 1584 Gly Val Leu Leu Ile Ala Gly Gly Ala Gly Ala Ala Val Tyr Ala Asn 515 520 525 caa ggt ggc gtt gaa gca gct gaa gac gaa gtg atg ttt gag agc gaa 1632 Gln Gly Gly Val Glu Ala Ala Glu Asp Glu Val Met Phe Glu Ser Glu 530 535 540 gaa gac gga acc cag gct ggc gag aac cgc gag agc gag acg gtc att 1680 Glu Asp Gly Thr Gln Ala Gly Glu Asn Arg Glu Ser Glu Thr Val Ile 545 550 555 560 gag atc gaa gat gac gca tgg gca gac atg gac taa agtagactag 1726 Glu Ile Glu Asp Asp Ala Trp Ala Asp Met Asp 565 570 tagtctgtgt gggcacatgc aggcgtgcga caaaaccgtg atcgcgaggt attctgtgtt 1786 acgggcggag cgtctgcggc tgtccttcga aggggaggcg gcgtgacact ctgagctagg 1846 taccagacga acgcagccat ttgtgtccgt ccgctctttc ttgatcacgt gccattttat 1906 tttacgtttt ccactggtgt atcttttcca gcagcttata tataggctgc cgcagcttcg 1966 tgtgtcacaa gccgctgtag acagtaagcc tactgcggcc tccttgtgga aagccgtttt 2026 ccccagagtt tcctgttttc cttccctccg cgtgccatct tgtttttcgc ccgcgcggat 2086 gtgttaatgc gataaataac taatgaagca aggttatgaa cagcttcgtg agctatattc 2146 ccagccaaaa aaaaaaaaaa a 2167 327 571 PRT Toxoplasma gondii 327 Val Ser Thr Arg Arg Arg Glu Asp Thr Glu Ser Glu Ala Cys Val Asn 1 5 10 15 Gln Val Glu Thr Met Glu Cys Pro Thr Gln Ala Gly Gln Ala Cys Gly 20 25 30 Asn Tyr Gly Ala Phe Ser Asp Cys Gly Val Pro Leu Arg Gly Phe Ala 35 40 45 Met Ala Phe Pro Glu Asn Cys Pro Glu Leu Val Ala Phe Ala Ala Cys 50 55 60 Asp Ala Pro Ala Pro Pro Gln Glu Asp Arg Cys His Ser Phe Ser Ala 65 70 75 80 Trp Ser Lys Cys Thr His Ile Pro Gly Thr Thr Leu Tyr Glu Gln Thr 85 90 95 Arg Ser Cys Asp Gly Met Asp Leu Thr Glu Ser Arg Phe Cys Thr Pro 100 105 110 Asp Glu Glu Val Gly Ser Asp Val Ser Thr Asp Val Ala Ser Glu Cys 115 120 125 Gly Ser Leu Gly Glu Phe Gly Glu Cys Val Asn Gly Leu Gln Glu Arg 130 135 140 Ser Tyr Ser Asp Cys Pro Asp His Lys Glu Val Arg Gln Cys Ser Asp 145 150 155 160 Glu Ser Cys Ser Ala Phe Gly Glu Trp Ser Pro Cys Gly Glu Pro Gln 165 170 175 Gln Gly Leu Arg Ile Arg Lys Arg Arg Ala Cys Asp Asn Val His Cys 180 185 190 Ala Cys Val Glu Ala Glu Val Cys Gly Asp Val Thr Pro Glu Ile Glu 195 200 205 Glu Glu Glu Gly Glu His Phe Pro Pro Glu Glu Gly Glu Val Leu Pro 210 215 220 Pro Tyr Glu Glu Gly Pro Gly Glu Gly Glu Leu Val Pro Pro Glu Glu 225 230 235 240 Glu Ile Pro Glu Gly Glu His Val Pro Glu Glu Glu Ile Pro Glu Gly 245 250 255 Glu His Ile Pro Glu Glu Leu Pro Glu Gly Glu His Val Pro Glu Glu 260 265 270 Glu Ile Pro Glu Gly Glu His Val Pro Glu Glu Glu Ile Pro Glu Gly 275 280 285 Glu His Val Pro Glu Glu Phe Pro Glu Gly Glu His Val Pro Glu Glu 290 295 300 Glu Ile Pro Glu Gly Glu His Val Pro Glu Glu Glu Ile Pro Glu Gly 305 310 315 320 Glu His Val Pro Glu Glu Phe Pro Glu Gly Glu His Ile Pro Glu Glu 325 330 335 Leu Pro Glu Gly Glu His Ile Pro Glu Glu Phe Pro Glu Gly Glu His 340 345 350 Ile Pro Glu Glu Leu Pro Glu Gly Glu His Val Pro Glu Glu Glu Ile 355 360 365 Pro Glu Gly Glu His Ile Pro Glu Glu Phe Pro Glu Gly Glu His Val 370 375 380 Pro Glu Glu Glu Ile Pro Glu Gly Glu His Ile Pro Glu Glu Glu Phe 385 390 395 400 Pro Glu Gly Glu His Val Pro Glu Glu Glu Ile Pro Glu Gly Glu His 405 410 415 Val Pro Glu Glu Glu Leu Pro Gly Gly Glu Leu Ile Pro Glu Glu Glu 420 425 430 Ile Pro Glu Gly Glu His Val Pro Glu Glu Leu Pro Glu Gly Glu His 435 440 445 Val Pro Glu Glu Glu Ile Pro Glu Gly Glu His Val Pro Glu Glu Glu 450 455 460 Ile Pro Glu Gly Glu His Val Pro Glu Glu Glu Thr Pro Glu Gly Glu 465 470 475 480 His Ala Pro Glu Glu Glu Thr Pro Ala Pro Glu Glu Thr Glu Lys Glu 485 490 495 Glu Glu Glu Gly Val Pro Val Ala Ala Ile Ala Gly Gly Val Val Gly 500 505 510 Gly Val Leu Leu Ile Ala Gly Gly Ala Gly Ala Ala Val Tyr Ala Asn 515 520 525 Gln Gly Gly Val Glu Ala Ala Glu Asp Glu Val Met Phe Glu Ser Glu 530 535 540 Glu Asp Gly Thr Gln Ala Gly Glu Asn Arg Glu Ser Glu Thr Val Ile 545 550 555 560 Glu Ile Glu Asp Asp Ala Trp Ala Asp Met Asp 565 570 328 2167 DNA Toxoplasma gondii 328 tttttttttt tttttggctg ggaatatagc tcacgaagct gttcataacc ttgcttcatt 60 agttatttat cgcattaaca catccgcgcg ggcgaaaaac aagatggcac gcggagggaa 120 ggaaaacagg aaactctggg gaaaacggct ttccacaagg aggccgcagt aggcttactg 180 tctacagcgg cttgtgacac acgaagctgc ggcagcctat atataagctg ctggaaaaga 240 tacaccagtg gaaaacgtaa aataaaatgg cacgtgatca agaaagagcg gacggacaca 300 aatggctgcg ttcgtctggt acctagctca gagtgtcacg ccgcctcccc ttcgaaggac 360 agccgcagac gctccgcccg taacacagaa tacctcgcga tcacggtttt gtcgcacgcc 420 tgcatgtgcc cacacagact actagtctac tttagtccat gtctgcccat gcgtcatctt 480 cgatctcaat gaccgtctcg ctctcgcggt tctcgccagc ctgggttccg tcttcttcgc 540 tctcaaacat cacttcgtct tcagctgctt caacgccacc ttggtttgcg tacacggcag 600 cacctgcacc accagcaatg agcaacacac ctccgacgac accaccggca atcgctgcga 660 ctggcacgcc ttcttcctcc tccttttcgg tctcctcagg tgcaggagtc tcttcctctg 720 gagcatgttc tccttcaggg gtctcctcct caggaacatg ctcgccttca gggatttcct 780 cttcaggaac atgctctcct tcagggatct cctcctcagg aacatgctcg ccttcaggga 840 gctcttcagg aacatgctct ccttcaggga tctcctcctc aggaataagt tctcctccag 900 ggagctcctc ctcaggaaca tgctcgcctt cagggatctc ctcctcagga acatgctctc 960 cttcagggaa ctcctcctca ggaatatgtt ctccttcagg gatttcctcc tcaggaacat 1020 gctcgccttc tgggaactct tcaggaatat gctctccttc agggatctcc tcctcaggaa 1080 catgctcgcc ttcagggagc tcctcaggaa tatgctctcc ttcagggaac tcttcaggga 1140 tatgctcgcc ttcagggagc tcctcaggaa tatgctctcc ttcagggaac tcttcaggaa 1200 catgctctcc ttcagggatt tcctcttcag gaacatgttc tccttcaggg atttcctcct 1260 caggaacatg ctcgccttct gggaactctt caggaacatg ctctccttca gggatttcct 1320 cttcaggaac atgttctcct tcagggattt cctcctcagg aacatgctcg ccttctggga 1380 gctcttcagg aatatgttct ccttcaggga tttcctcctc aggaacatgt tctccttcag 1440 ggatctcctc ctcgggagga acaagctcac cctcaccagg accctcttca tatggaggca 1500 agacctcgcc ttcttcaggg gggaaatgtt cgccttcttc ctcctcaatc tctggggtga 1560 catcgccgca gacctcggcc tcgacacagg cgcagtgcac gttgtcgcat gcacgtctct 1620 tgcggatacg caggccttgc tggggttccc cgcagggtga ccactcgccg aaggcagagc 1680 aggattcgtc agagcactga cggacttcct tatgatcggg gcagtccgag tagcttctct 1740 cctgaaggcc gttcacacac tcgccgaact cgccgaggga accgcattcg gaagcgacgt 1800 cagtggaaac gtccgagccg acctcctcgt cgggagtgca gaagcgggac tcggtcaaat 1860 ccatgccatc gcaggagcgc gtctgctcgt acagagtagt gccgggtatg tgtgtgcact 1920 tggaccaggc cgagaaagaa tggcagcggt cctcttgggg aggcgcggga gcatcgcagg 1980 cggcgaaggc cacgagctct gggcagttct cggggaaggc catggcgaag ccgcgaagag 2040 gcactccaca gtcggagaag gcaccatagt tgccgcatgc ttgcccagcc tgagttgggc 2100 actccatggt ttcgacttgg ttgacgcacg cctcgctctc ggtgtcttct ctccggcggg 2160 tgctcac 2167 329 2393 DNA Toxoplasma gondii CDS (1)..(594) 329 gca gga att ctt gca acc act gga gtg cat tca ctc gct gcg atc ccg 48 Ala Gly Ile Leu Ala Thr Thr Gly Val His Ser Leu Ala Ala Ile Pro 1 5 10 15 aga ctc acc tca gca gcc gct act gtg tgg acc tcc cag aca agg ttg 96 Arg Leu Thr Ser Ala Ala Ala Thr Val Trp Thr Ser Gln Thr Arg Leu 20 25 30 agt cga tca cct gcg aag tcg gct ccc tgc ccc agc ccc cga ctg tcg 144 Ser Arg Ser Pro Ala Lys Ser Ala Pro Cys Pro Ser Pro Arg Leu Ser 35 40 45 ccc ccg gcg agg gtg gtg agg aag acg gca acg cat gtg gac cgt ggg 192 Pro Pro Ala Arg Val Val Arg Lys Thr Ala Thr His Val Asp Arg Gly 50 55 60 tcc gtg gag ccc gtg tcc cgg cga agg aaa caa cat gag cac ccg ccg 240 Ser Val Glu Pro Val Ser Arg Arg Arg Lys Gln His Glu His Pro Pro 65 70 75 80 gag aga aga cac cga gag cga ggc gtg cgt caa cca agt cga aac cat 288 Glu Arg Arg His Arg Glu Arg Gly Val Arg Gln Pro Ser Arg Asn His 85 90 95 gga gtg ccc aac tca ggc tgg gca agc atg cgg caa cta tgg tgc ctt 336 Gly Val Pro Asn Ser Gly Trp Ala Ser Met Arg Gln Leu Trp Cys Leu 100 105 110 ctc cga ctg tgg aat gcc tct tcg cgg ctt cgc cat ggc ctt ccc cga 384 Leu Arg Leu Trp Asn Ala Ser Ser Arg Leu Arg His Gly Leu Pro Arg 115 120 125 gaa ctg ccc aga gct cgt ggc ctt cgc cgc ctg cga tgc tcc cgc gcc 432 Glu Leu Pro Arg Ala Arg Gly Leu Arg Arg Leu Arg Cys Ser Arg Ala 130 135 140 tcc cca aga gga ccg ctg cca ttc ttt ctc ggc ctg gtc caa gtg cac 480 Ser Pro Arg Gly Pro Leu Pro Phe Phe Leu Gly Leu Val Gln Val His 145 150 155 160 aca cat acc cgg cac tac tct gta cga gca gac gcg ctc ctg cga tgg 528 Thr His Thr Arg His Tyr Ser Val Arg Ala Asp Ala Leu Leu Arg Trp 165 170 175 cat gga ttt gac cga gtc ccg ctt ctg cac tcc cga cga gga ggt cgg 576 His Gly Phe Asp Arg Val Pro Leu Leu His Ser Arg Arg Gly Gly Arg 180 185 190 ctc gga cgt ttc cac tga cgtcgcttcc gaatgcggtt ccctcggcga 624 Leu Gly Arg Phe His 195 gttcggcgag tgtgtgaacg gccttcagga gagaagctac tcggactgcc ccgatcataa 684 ggaagtccgt cagtgctctg acgaatcctg ctctgccttc ggcgagtggt caccctgcgg 744 ggaaccccag caaggcctgc gtatccgcaa gagacgtgca tgcgacaacg tgcactgcgc 804 ctgtgtcgag gccgaggtct gcggcgatgt caccccagag attgaggagg aagaaggcga 864 acatttcccc cctgaagaag gcgaggtctt gcctccatat gaagagggtc ctggtgaggg 924 tgagcttgtt cctcccgagg aggagatccc tgaaggagaa catgttcctg aggaggaaat 984 ccctgaagga gaacatattc ctgaagagct cccagaaggc gagcatgttc ctgaggagga 1044 aatccctgaa ggagaacatg ttcctgaaga ggaaatccct gaaggagagc atgttcctga 1104 agagttccca gaaggcgaac atgttcctga ggaggaaatc cctgaaggag aacatgttcc 1164 tgaagaggaa atccctgaag gagaacatgt tcctgaagag ttccctgaag gagaacatat 1224 tcctgaggag ctccctgaag gagagcatat tcatgaagag ttccctgaag gagagcatat 1284 tcatgaggag ctccctgaag gcgagcatgt tcctgaagag gagatccctg aaggagaaca 1344 tattcctgag gagttccctg aaggcgagca tgttcctgag gaggaaatcc ctgaaggaga 1404 acatattcct gaggaggagt tccctgaagg agagcatgtt cctgaggagg agatccctga 1464 aggcgagcat gttcctgagg aggagctccc tggaggagaa cttattcctg aggaggagat 1524 ccctgaagga gagcatgttc ctgaagagct ccctgaaggc gagcatgttc ctgaggagga 1584 gatccctgaa ggagagcatg ttcctgaaga ggaaatccct gaaggcgagc atgttcctga 1644 ggaggagacc cctgaaggag aacatgctcc agaggaagag actcctgcac ctgaggagac 1704 cgaaaaggag gaggaagaag gcgtgccagt cgcagcgatt gccggtggtg tcgtcggagg 1764 tgtgttgctc attgctggtg gtgcaggtgc tgccgtgtac gcaaaccaag gtggcgttga 1824 agcagctgaa gacgaagtga tgtttgagag cgaagaagac ggaacccagg ctggcgagaa 1884 ccgcgagagc gagacggtca ttgagatcga agatgacgca tgggcagaca tggactaaag 1944 tagactagta gtctgtgtgg gcacatgcag gcgtgcgaca aaaccgtgat cgcgaggtat 2004 tctgtgttac gggcggagcg tctgcggctg tccttcgaag gggaggcggc gtgacactct 2064 gagctaggta ccagacgaac gcagccattt gtgtccgtcc gctctttctt gatcacgtgc 2124 cattttattt tacgttttcc actggtgtat cttttccagc agcttatata taggctgccg 2184 cagcttcgtg tgtcacaagc cgctgtagac agtaagccta ctgcggcctc cttgtggaaa 2244 gccgttttcc ccagagtttc ctgttttcct tccctccgcg tgccatcttg tttttcgccc 2304 gcgcggatgt gttaatgcga taaataacta atgaagcaag gttatgaaca gcttcgtgag 2364 ctatattccc agccaaaaaa aaaaaaaaa 2393 330 197 PRT Toxoplasma gondii 330 Ala Gly Ile Leu Ala Thr Thr Gly Val His Ser Leu Ala Ala Ile Pro 1 5 10 15 Arg Leu Thr Ser Ala Ala Ala Thr Val Trp Thr Ser Gln Thr Arg Leu 20 25 30 Ser Arg Ser Pro Ala Lys Ser Ala Pro Cys Pro Ser Pro Arg Leu Ser 35 40 45 Pro Pro Ala Arg Val Val Arg Lys Thr Ala Thr His Val Asp Arg Gly 50 55 60 Ser Val Glu Pro Val Ser Arg Arg Arg Lys Gln His Glu His Pro Pro 65 70 75 80 Glu Arg Arg His Arg Glu Arg Gly Val Arg Gln Pro Ser Arg Asn His 85 90 95 Gly Val Pro Asn Ser Gly Trp Ala Ser Met Arg Gln Leu Trp Cys Leu 100 105 110 Leu Arg Leu Trp Asn Ala Ser Ser Arg Leu Arg His Gly Leu Pro Arg 115 120 125 Glu Leu Pro Arg Ala Arg Gly Leu Arg Arg Leu Arg Cys Ser Arg Ala 130 135 140 Ser Pro Arg Gly Pro Leu Pro Phe Phe Leu Gly Leu Val Gln Val His 145 150 155 160 Thr His Thr Arg His Tyr Ser Val Arg Ala Asp Ala Leu Leu Arg Trp 165 170 175 His Gly Phe Asp Arg Val Pro Leu Leu His Ser Arg Arg Gly Gly Arg 180 185 190 Leu Gly Arg Phe His 195 331 2392 DNA Toxoplasma gondii 331 tttttttttt tttttggctg ggaatatagc tcacgaagct gttcataacc ttgcttcatt 60 agttatttat cgcattaaca catccgcgcg ggcgaaaaac aagatggcac gcggagggaa 120 ggaaaacagg aaactctggg gaaaacggct ttccacaagg aggccgcagt aggcttactg 180 tctacagcgg cttgtgacac acgaagctgc ggcagcctat atataagctg ctggaaaaga 240 tacaccagtg gaaaacgtaa aataaaatgg cacgtgatca agaaagagcg gacggacaca 300 aatggctgcg ttcgtctggt acctagctca gagtgtcacg ccgcctcccc ttcgaaggac 360 agccgcagac gctccgcccg taacacagaa tacctcgcga tcacggtttt gtcgcacgcc 420 tgcatgtgcc cacacagact actagtctac tttagtccat gtctgcccat gcgtcatctt 480 cgatctcaat gaccgtctcg ctctcgcggt tctcgccagc ctgggttccg tcttcttcgc 540 tctcaaacat cacttcgtct tcagctgctt caacgccacc ttggtttgcg tacacggcag 600 cacctgcacc accagcaatg agcaacacac ctccgacgac accaccggca atcgctgcga 660 ctggcacgcc ttcttcctcc tccttttcgg tctcctcagg tgcaggagtc tcttcctctg 720 gagcatgttc tccttcaggg gtctcctcct caggaacatg ctcgccttca gggatttcct 780 cttcaggaac atgctctcct tcagggatct cctcctcagg aacatgctcg ccttcaggga 840 gctcttcagg aacatgctct ccttcaggga tctcctcctc aggaataagt tctcctccag 900 ggagctcctc ctcaggaaca tgctcgcctt cagggatctc ctcctcagga acatgctctc 960 cttcagggaa ctcctcctca ggaatatgtt ctccttcagg gatttcctcc tcaggaacat 1020 gctcgccttc agggaactcc tcaggaatat gttctccttc agggatctcc tcttcaggaa 1080 catgctcgcc ttcagggagc tcctcatgaa tatgctctcc ttcagggaac tcttcatgaa 1140 tatgctctcc ttcagggagc tcctcaggaa tatgttctcc ttcagggaac tcttcaggaa 1200 catgttctcc ttcagggatt tcctcttcag gaacatgttc tccttcaggg atttcctcct 1260 caggaacatg ttcgccttct gggaactctt caggaacatg ctctccttca gggatttcct 1320 cttcaggaac atgttctcct tcagggattt cctcctcagg aacatgctcg ccttctggga 1380 gctcttcagg aatatgttct ccttcaggga tttcctcctc aggaacatgt tctccttcag 1440 ggatctcctc ctcgggagga acaagctcac cctcaccagg accctcttca tatggaggca 1500 agacctcgcc ttcttcaggg gggaaatgtt cgccttcttc ctcctcaatc tctggggtga 1560 catcgccgca gacctcggcc tcgacacagg cgcagtgcac gttgtcgcat gcacgtctct 1620 tgcggatacg caggccttgc tggggttccc cgcagggtga ccactcgccg aaggcagagc 1680 aggattcgtc agagcactga cggacttcct tatgatcggg gcagtccgag tagcttctct 1740 cctgaaggcc gttcacacac tcgccgaact cgccgaggga accgcattcg gaagcgacgt 1800 cagtggaaac gtccgagccg acctcctcgt cgggagtgca gaagcgggac tcggtcaaat 1860 ccatgccatc gcaggagcgc gtctgctcgt acagagtagt gccgggtatg tgtgtgcact 1920 tggaccaggc cgagaaagaa tggcagcggt cctcttgggg aggcgcggga gcatcgcagg 1980 cggcgaaggc cacgagctct gggcagttct cggggaaggc catggcgaag ccgcgaagag 2040 gcattccaca gtcggagaag gcaccatagt tgccgcatgc ttgcccagcc tgagttgggc 2100 actccatggt ttcgacttgg ttgacgcacg cctcgctctc ggtgtcttct ctccggcggg 2160 tgctcatgtt gtttccttcg ccgggacacg ggctccacgg acccacggtc cacatgcgtt 2220 gccgtcttcc tcaccaccct cgccgggggc gacagtcggg ggctggggca gggagccgac 2280 ttcgcaggtg atcgactcaa ccttgtctgg gaggtccaca cagtagcggc tgctgaggtg 2340 agtctcggga tcgcagcgag tgaatgcact ccagtggttg caagaattcc tg 2392 332 21 DNA Artificial sequence Synthetic Primer 332 ggaactgcat ccgttcatga g 21 333 19 DNA Artificial sequence Synthetic Primer 333 tcttaaagcg ttcgtggtc 19 334 23 DNA Artificial sequence Synthetic Primer 334 ggcgaccaat ctgcgaatac acc 23 335 24 DNA Artificial sequence Synthetic Primer 335 gcatccttgg agacagagct tgag 24 336 24 DNA Artificial sequence Synthetic Primer 336 gggttctctt ctcgctcatc tttc 24 337 19 DNA Artificial sequence Synthetic Primer 337 agtcagaagc agtcaaggc 19 338 647 DNA Toxoplasma gondii 338 gatcctttag ccacttagac cgattcccca gacttgctcg gagatagtgt cagtgtcact 60 actacacagc tcaaagaagc cacatcccgt gaaaaatttt atcgtctaca agcgtgggcc 120 ggttctttgt tcactgttca cgtcacgtgt ggacatgccg ttgtgtcgtg gcagcaaata 180 cgaagaagcc aaagacatcc gaaaccgccc gttcagagtc ggggagactg cctgggtttt 240 cccacgagct gcatgttcca gctagatgca agcacctgca gtggggatgt atctccgaaa 300 aggcgagcaa ttttgtccaa aaagggtgag ctaatcgtga aatgtccact gacatgcagc 360 gtccgcttct gtctcagtac cgatcttcac ttcgcgtgct acccgcgttc gtttcgtttc 420 cccccattcc agatatccct gccgctgtgg cgcctggaag cgctcctcga ctgcattgag 480 cattccgccg tcacaagact tttttttccc ttttgccaac gtcgagaacc tctcacgggc 540 gagcaaagtc tagtgtttgg tttcagtacg gcggtcgctg gctctgtgta tgactgacct 600 gaagaagcaa agacttcttg caacgtagaa acgcaaaggc gcttctt 647 339 647 DNA Toxoplasma gondii 339 aagaagcgcc tttgcgtttc tacgttgcaa gaagtctttg cttcttcagg tcagtcatac 60 acagagccag cgaccgccgt actgaaacca aacactagac tttgctcgcc cgtgagaggt 120 tctcgacgtt ggcaaaaggg aaaaaaaagt cttgtgacgg cggaatgctc aatgcagtcg 180 aggagcgctt ccaggcgcca cagcggcagg gatatctgga atggggggaa acgaaacgaa 240 cgcgggtagc acgcgaagtg aagatcggta ctgagacaga agcggacgct gcatgtcagt 300 ggacatttca cgattagctc accctttttg gacaaaattg ctcgcctttt cggagataca 360 tccccactgc aggtgcttgc atctagctgg aacatgcagc tcgtgggaaa acccaggcag 420 tctccccgac tctgaacggg cggtttcgga tgtctttggc ttcttcgtat ttgctgccac 480 gacacaacgg catgtccaca cgtgacgtga acagtgaaca aagaaccggc ccacgcttgt 540 agacgataaa atttttcacg ggatgtggct tctttgagct gtgtagtagt gacactgaca 600 ctatctccga gcaagtctgg ggaatcggtc taagtggcta aaggatc 647 340 867 DNA Toxoplasma gondii CDS (1)..(867) 340 atg gca gga agg cag gcg gcg ttg ttt ttg gtg gtg ctg tct gtg gcg 48 Met Ala Gly Arg Gln Ala Ala Leu Phe Leu Val Val Leu Ser Val Ala 1 5 10 15 gcg ggc cct gtc tcc cag ctt gct cgg gcg agc gac gac agc gtc gac 96 Ala Gly Pro Val Ser Gln Leu Ala Arg Ala Ser Asp Asp Ser Val Asp 20 25 30 agc gtc gaa acc gcg cgt cag cac atg gag ctg gct atc gag gct gac 144 Ser Val Glu Thr Ala Arg Gln His Met Glu Leu Ala Ile Glu Ala Asp 35 40 45 gaa gag atg cac gag gcc tac gac cct ttg ttg gaa ttc gtt gag acg 192 Glu Glu Met His Glu Ala Tyr Asp Pro Leu Leu Glu Phe Val Glu Thr 50 55 60 ttt cgg gaa atc aaa aaa gct gtt gag gaa gat gcg gct ctg agt aca 240 Phe Arg Glu Ile Lys Lys Ala Val Glu Glu Asp Ala Ala Leu Ser Thr 65 70 75 80 gat gcg atc gac cgc gtg tcc cag ttc gat ctg gtt tcc ctc cta gat 288 Asp Ala Ile Asp Arg Val Ser Gln Phe Asp Leu Val Ser Leu Leu Asp 85 90 95 gtc atc cga gag gct gca caa gca aag ttc gat ctc ctc gga cgc ctc 336 Val Ile Arg Glu Ala Ala Gln Ala Lys Phe Asp Leu Leu Gly Arg Leu 100 105 110 att aca gac atc gcc agc gga atc ggc gag ggt gcc atg gct ctg atg 384 Ile Thr Asp Ile Ala Ser Gly Ile Gly Glu Gly Ala Met Ala Leu Met 115 120 125 gga gag gag gct gcg ttc att agg cca agg agg tca aag aga ggg aaa 432 Gly Glu Glu Ala Ala Phe Ile Arg Pro Arg Arg Ser Lys Arg Gly Lys 130 135 140 aag act aca act aca acc agt tca tcc aca agt acg agt aca acg acc 480 Lys Thr Thr Thr Thr Thr Ser Ser Ser Thr Ser Thr Ser Thr Thr Thr 145 150 155 160 acg aca tca act acc act act acc act acc acc act acg act act act 528 Thr Thr Ser Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr 165 170 175 aca act acg aca cca aca aca act aca aca acc aca aca act aca cca 576 Thr Thr Thr Thr Pro Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Pro 180 185 190 aca aca acg aca aca acc aca aca act aca cca aca aca acg aca aca 624 Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Pro Thr Thr Thr Thr Thr 195 200 205 acc aca aca act aca cca aca aca acg aca aca acc aca acg cca act 672 Thr Thr Thr Thr Thr Pro Thr Thr Thr Thr Thr Thr Thr Thr Pro Thr 210 215 220 aca acg aca tct acg aca acc act acg act acc aca act act act aca 720 Thr Thr Thr Ser Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr 225 230 235 240 cca act aca aca acg aca acc acg gaa cca aca act aca aca aca acc 768 Pro Thr Thr Thr Thr Thr Thr Thr Glu Pro Thr Thr Thr Thr Thr Thr 245 250 255 acg gaa cca acc aca act aca agc aca acg acg act acg aca act aca 816 Thr Glu Pro Thr Thr Thr Thr Ser Thr Thr Thr Thr Thr Thr Thr Thr 260 265 270 acg act acg aca cca tct acg acg aca tcc acc acc act acc ctc gat 864 Thr Thr Thr Thr Pro Ser Thr Thr Thr Ser Thr Thr Thr Thr Leu Asp 275 280 285 tag 867 341 288 PRT Toxoplasma gondii 341 Met Ala Gly Arg Gln Ala Ala Leu Phe Leu Val Val Leu Ser Val Ala 1 5 10 15 Ala Gly Pro Val Ser Gln Leu Ala Arg Ala Ser Asp Asp Ser Val Asp 20 25 30 Ser Val Glu Thr Ala Arg Gln His Met Glu Leu Ala Ile Glu Ala Asp 35 40 45 Glu Glu Met His Glu Ala Tyr Asp Pro Leu Leu Glu Phe Val Glu Thr 50 55 60 Phe Arg Glu Ile Lys Lys Ala Val Glu Glu Asp Ala Ala Leu Ser Thr 65 70 75 80 Asp Ala Ile Asp Arg Val Ser Gln Phe Asp Leu Val Ser Leu Leu Asp 85 90 95 Val Ile Arg Glu Ala Ala Gln Ala Lys Phe Asp Leu Leu Gly Arg Leu 100 105 110 Ile Thr Asp Ile Ala Ser Gly Ile Gly Glu Gly Ala Met Ala Leu Met 115 120 125 Gly Glu Glu Ala Ala Phe Ile Arg Pro Arg Arg Ser Lys Arg Gly Lys 130 135 140 Lys Thr Thr Thr Thr Thr Ser Ser Ser Thr Ser Thr Ser Thr Thr Thr 145 150 155 160 Thr Thr Ser Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr 165 170 175 Thr Thr Thr Thr Pro Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Pro 180 185 190 Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Pro Thr Thr Thr Thr Thr 195 200 205 Thr Thr Thr Thr Thr Pro Thr Thr Thr Thr Thr Thr Thr Thr Pro Thr 210 215 220 Thr Thr Thr Ser Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr 225 230 235 240 Pro Thr Thr Thr Thr Thr Thr Thr Glu Pro Thr Thr Thr Thr Thr Thr 245 250 255 Thr Glu Pro Thr Thr Thr Thr Ser Thr Thr Thr Thr Thr Thr Thr Thr 260 265 270 Thr Thr Thr Thr Pro Ser Thr Thr Thr Ser Thr Thr Thr Thr Leu Asp 275 280 285 342 867 DNA Toxoplasma gondii 342 atggcaggaa ggcaggcggc gttgtttttg gtggtgctgt ctgtggcggc gggccctgtc 60 tcccagcttg ctcgggcgag cgacgacagc gtcgacagcg tcgaaaccgc gcgtcagcac 120 atggagctgg ctatcgaggc tgacgaagag atgcacgagg cctacgaccc tttgttggaa 180 ttcgttgaga cgtttcggga aatcaaaaaa gctgttgagg aagatgcggc tctgagtaca 240 gatgcgatcg accgcgtgtc ccagttcgat ctggtttccc tcctagatgt catccgagag 300 gctgcacaag caaagttcga tctcctcgga cgcctcatta cagacatcgc cagcggaatc 360 ggcgagggtg ccatggctct gatgggagag gaggctgcgt tcattaggcc aaggaggtca 420 aagagaggga aaaagactac aactacaacc agttcatcca caagtacgag tacaacgacc 480 acgacatcaa ctaccactac taccactacc accactacga ctactactac aactacgaca 540 ccaacaacaa ctacaacaac cacaacaact acaccaacaa caacgacaac aaccacaaca 600 actacaccaa caacaacgac aacaaccaca acaactacac caacaacaac gacaacaacc 660 acaacgccaa ctacaacgac atctacgaca accactacga ctaccacaac tactactaca 720 ccaactacaa caacgacaac cacggaacca acaactacaa caacaaccac ggaaccaacc 780 acaactacaa gcacaacgac gactacgaca actacaacga ctacgacacc atctacgacg 840 acatccacca ccactaccct cgattag 867 343 1397 DNA Toxoplasma gondii CDS (238)..(1104) 343 ccccattcca gatatccctg ccgctgtggc gcctggaagc gctcctcgac tgcattgagc 60 attccgccgt cacaagactt ttttttccct tttgccaacg tcgagaacct ctcacggacg 120 agcaaagtct agtgtttggt ttcagtacgg cggtcgctgg ctctgtgtat gactgacctg 180 aagaagcaaa gacttcttgc aacgtagaaa cgcaaaggcg cttctttttt gtgcaat 237 atg gca gga agg cag gcg gcg ttg ttt ttg gtg gtg ctg tct gtg gcg 285 Met Ala Gly Arg Gln Ala Ala Leu Phe Leu Val Val Leu Ser Val Ala 1 5 10 15 gcg ggc cct gtc tcc cag ctt gct cgg gcg agc gac gac agc gtc gac 333 Ala Gly Pro Val Ser Gln Leu Ala Arg Ala Ser Asp Asp Ser Val Asp 20 25 30 agc gtc gaa acc gcg cgt cag cac atg gag ctg gct atc gag gct gac 381 Ser Val Glu Thr Ala Arg Gln His Met Glu Leu Ala Ile Glu Ala Asp 35 40 45 gaa gag atg cac gag gcc tac gac cct ttg ttg gaa ttc gtt gag acg 429 Glu Glu Met His Glu Ala Tyr Asp Pro Leu Leu Glu Phe Val Glu Thr 50 55 60 ttt cgg gaa atc aaa aaa gct gtt gag gaa gat gcg gct ctg agt aca 477 Phe Arg Glu Ile Lys Lys Ala Val Glu Glu Asp Ala Ala Leu Ser Thr 65 70 75 80 gat gcg atc gac cgc gtg tcc cag ttc gat ctg gtt tcc ctc cta gat 525 Asp Ala Ile Asp Arg Val Ser Gln Phe Asp Leu Val Ser Leu Leu Asp 85 90 95 gtc atc cga gag gct gca caa gca aag ttc gat ctc ctc gga cgc ctc 573 Val Ile Arg Glu Ala Ala Gln Ala Lys Phe Asp Leu Leu Gly Arg Leu 100 105 110 att aca gac atc gcc agc gga atc ggc gag ggt gcc atg gct ctg atg 621 Ile Thr Asp Ile Ala Ser Gly Ile Gly Glu Gly Ala Met Ala Leu Met 115 120 125 gga gag gag gct gcg ttc att agg cca agg agg tca aag aga ggg aaa 669 Gly Glu Glu Ala Ala Phe Ile Arg Pro Arg Arg Ser Lys Arg Gly Lys 130 135 140 aag act aca act aca acc agt tca tcc aca agt acg agt aca acg acc 717 Lys Thr Thr Thr Thr Thr Ser Ser Ser Thr Ser Thr Ser Thr Thr Thr 145 150 155 160 acg aca tca act acc act act acc act acc acc act acg act act act 765 Thr Thr Ser Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr 165 170 175 aca act acg aca cca aca aca act aca aca acc aca aca act aca cca 813 Thr Thr Thr Thr Pro Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Pro 180 185 190 aca aca acg aca aca acc aca aca act aca cca aca aca acg aca aca 861 Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Pro Thr Thr Thr Thr Thr 195 200 205 acc aca aca act aca cca aca aca acg aca aca acc aca acg cca act 909 Thr Thr Thr Thr Thr Pro Thr Thr Thr Thr Thr Thr Thr Thr Pro Thr 210 215 220 aca acg aca tct acg aca acc act acg act acc aca act act act aca 957 Thr Thr Thr Ser Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr 225 230 235 240 cca act aca aca acg aca acc acg gaa cca aca act aca aca aca acc 1005 Pro Thr Thr Thr Thr Thr Thr Thr Glu Pro Thr Thr Thr Thr Thr Thr 245 250 255 acg gaa cca acc aca act aca agc aca acg acg act acg aca act aca 1053 Thr Glu Pro Thr Thr Thr Thr Ser Thr Thr Thr Thr Thr Thr Thr Thr 260 265 270 acg act acg aca cca tct acg acg aca tcc acc acc act acc ctc gat 1101 Thr Thr Thr Thr Pro Ser Thr Thr Thr Ser Thr Thr Thr Thr Leu Asp 275 280 285 tag accaaagtgt ttttgccgca cagattgtac atgcatcaaa aaacgcgata 1154 tttctttctc gtttgcgctg gcgtcatctg cgtctgccat ttgaatctgt cagcgctgcc 1214 agctccatag ggcgtgctcc ctgattacgt atttgcacga agggatgtct tggcttctac 1274 attggcgaac cgtttttggc actccaaaat ttttattaac acaaagcctt gcactggcct 1334 cattgtctat tcatagaacg ataatgtgtt gacctcgaaa aaaaaaaaaa aaaaaaaaaa 1394 aaa 1397 344 288 PRT Toxoplasma gondii 344 Met Ala Gly Arg Gln Ala Ala Leu Phe Leu Val Val Leu Ser Val Ala 1 5 10 15 Ala Gly Pro Val Ser Gln Leu Ala Arg Ala Ser Asp Asp Ser Val Asp 20 25 30 Ser Val Glu Thr Ala Arg Gln His Met Glu Leu Ala Ile Glu Ala Asp 35 40 45 Glu Glu Met His Glu Ala Tyr Asp Pro Leu Leu Glu Phe Val Glu Thr 50 55 60 Phe Arg Glu Ile Lys Lys Ala Val Glu Glu Asp Ala Ala Leu Ser Thr 65 70 75 80 Asp Ala Ile Asp Arg Val Ser Gln Phe Asp Leu Val Ser Leu Leu Asp 85 90 95 Val Ile Arg Glu Ala Ala Gln Ala Lys Phe Asp Leu Leu Gly Arg Leu 100 105 110 Ile Thr Asp Ile Ala Ser Gly Ile Gly Glu Gly Ala Met Ala Leu Met 115 120 125 Gly Glu Glu Ala Ala Phe Ile Arg Pro Arg Arg Ser Lys Arg Gly Lys 130 135 140 Lys Thr Thr Thr Thr Thr Ser Ser Ser Thr Ser Thr Ser Thr Thr Thr 145 150 155 160 Thr Thr Ser Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr 165 170 175 Thr Thr Thr Thr Pro Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Pro 180 185 190 Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Pro Thr Thr Thr Thr Thr 195 200 205 Thr Thr Thr Thr Thr Pro Thr Thr Thr Thr Thr Thr Thr Thr Pro Thr 210 215 220 Thr Thr Thr Ser Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr Thr 225 230 235 240 Pro Thr Thr Thr Thr Thr Thr Thr Glu Pro Thr Thr Thr Thr Thr Thr 245 250 255 Thr Glu Pro Thr Thr Thr Thr Ser Thr Thr Thr Thr Thr Thr Thr Thr 260 265 270 Thr Thr Thr Thr Pro Ser Thr Thr Thr Ser Thr Thr Thr Thr Leu Asp 275 280 285 345 1397 DNA Toxoplasma gondii 345 tttttttttt tttttttttt ttttttcgag gtcaacacat tatcgttcta tgaatagaca 60 atgaggccag tgcaaggctt tgtgttaata aaaattttgg agtgccaaaa acggttcgcc 120 aatgtagaag ccaagacatc ccttcgtgca aatacgtaat cagggagcac gccctatgga 180 gctggcagcg ctgacagatt caaatggcag acgcagatga cgccagcgca aacgagaaag 240 aaatatcgcg ttttttgatg catgtacaat ctgtgcggca aaaacacttt ggtctaatcg 300 agggtagtgg tggtggatgt cgtcgtagat ggtgtcgtag tcgttgtagt tgtcgtagtc 360 gtcgttgtgc ttgtagttgt ggttggttcc gtggttgttg ttgtagttgt tggttccgtg 420 gttgtcgttg ttgtagttgg tgtagtagta gttgtggtag tcgtagtggt tgtcgtagat 480 gtcgttgtag ttggcgttgt ggttgttgtc gttgttgttg gtgtagttgt tgtggttgtt 540 gtcgttgttg ttggtgtagt tgttgtggtt gttgtcgttg ttgttggtgt agttgttgtg 600 gttgttgtag ttgttgttgg tgtcgtagtt gtagtagtag tcgtagtggt ggtagtggta 660 gtagtggtag ttgatgtcgt ggtcgttgta ctcgtacttg tggatgaact ggttgtagtt 720 gtagtctttt tccctctctt tgacctcctt ggcctaatga acgcagcctc ctctcccatc 780 agagccatgg caccctcgcc gattccgctg gcgatgtctg taatgaggcg tccgaggaga 840 tcgaactttg cttgtgcagc ctctcggatg acatctagga gggaaaccag atcgaactgg 900 gacacgcggt cgatcgcatc tgtactcaga gccgcatctt cctcaacagc ttttttgatt 960 tcccgaaacg tctcaacgaa ttccaacaaa gggtcgtagg cctcgtgcat ctcttcgtca 1020 gcctcgatag ccagctccat gtgctgacgc gcggtttcga cgctgtcgac gctgtcgtcg 1080 ctcgcccgag caagctggga gacagggccc gccgccacag acagcaccac caaaaacaac 1140 gccgcctgcc ttcctgccat attgcacaaa aaagaagcgc ctttgcgttt ctacgttgca 1200 agaagtcttt gcttcttcag gtcagtcata cacagagcca gcgaccgccg tactgaaacc 1260 aaacactaga ctttgctcgt ccgtgagagg ttctcgacgt tggcaaaagg gaaaaaaaag 1320 tcttgtgacg gcggaatgct caatgcagtc gaggagcgct tccaggcgcc acagcggcag 1380 ggatatctgg aatgggg 1397 346 18 DNA Artificial sequence Synthetic Primer 346 caggaaacag ctatgacc 18 347 20 DNA Artificial sequence Synthetic Primer 347 attaaccctc actaaaggga 20 348 20 DNA Artificial sequence Synthetic Primer 348 taatacgact cactataggg 20 349 23 DNA Artificial sequence Synthetic Primer 349 gccagtgtga tggatatctg cag 23 350 18 DNA Artificial sequence Synthetic Primer 350 cgagctcgga tccactag 18 351 23 DNA Artificial sequence Synthetic Primer 351 ggttctctcc agaggttcat tac 23 352 22 DNA Artificial sequence Synthetic Primer 352 ggatgcaatg aagagagggc tc 22 353 24 DNA Artificial sequence Synthetic Primer 353 aactagaagg cacagtcgag gctg 24 354 24 DNA Artificial sequence Synthetic Primer 354 gggaacaaaa gctggagctc cacc 24 355 23 DNA Artificial sequence Synthetic Primer 355 cggacgttgc atgtcagtgg aca 23 356 24 DNA Artificial sequence Synthetic Primer 356 cacgaagctg catgttccag ctag 24 357 24 DNA Artificial sequence Synthetic Primer 357 acactttggt ctaatcgagg gtag 24 358 23 DNA Artificial sequence Synthetic Primer 358 acaacgacca cgacatcaac tac 23 359 24 DNA Artificial sequence Synthetic Primer 359 gttgtcgtag atgtcgttgt agtt 24 360 24 DNA Artificial sequence Synthetic Primer 360 agaagcgcct ttgcgtttct acgt 24 361 24 DNA Artificial sequence Synthetic Primer 361 gaggagatcg aactttgctt gtgc 24 362 46 DNA Artificial sequence Synthetic Primer 362 aaggataggc ggccgcaggt accatggcag gaaggcaggc ggcgtt 46 363 40 DNA Artificial sequence Synthetic Primer 363 accgctcgag aagcttgaag ccaagacatc ccttcgtgca 40 364 34 DNA Artificial sequence Synthetic Primer 364 ggccacgcgt cgactacttt tttttttttt tttt 34 365 20 DNA Artificial sequence ggtggcgacg actcctggag 365 ggtggcgacg actcctggag 20 366 22 DNA Artificial sequence ccagaccaac tggtaatggt ag 366 ccagaccaac tggtaatggt ag 22 

What is claimed is:
 1. A method to detect an encysted stage of a parasite in feces, said encysted stage selected from the group consisting of a cyst and an oocyst, said method comprising: (a) contacting a sample of feces with a solid support capable of binding said encysted parasites; (b) allowing the sample to dry onto the solid support; (c) washing the sample on the solid support with an aqueous wash solution; (d) adding an aqueous elution solution to the sample and eluting DNA from the sample into the aqueous elution solution by heating; (e) PCR amplifying encysted parasite-specific DNA with primers specific to the encysted parasite being detected; and (f) detecting the presence of a PCR amplification product resulting from amplification of encysted parasite-specific DNA in the sample, wherein the presence of said product indicates the presence of encysted parasite in said feces; and wherein said method is conducted in the absence of a step to remove or inhibit inhibitors of PCR amplification.
 2. A method according to claim 1, wherein the sample of feces is solubilized in an aqueous solution before contacting the sample with a solid support capable of binding said encysted parasite.
 3. A method according to claim 1; wherein the aqueous wash solution comprises distilled water.
 4. A method according to claim 1, wherein the aqueous elution solution comprises distilled water.
 5. A method according to claim 1, wherein the heating step comprises heating to approximately 95° C.
 6. A method according to claim 1, wherein the solid support capable of binding said encysted parasite comprises paper.
 7. The method of claim 1, wherein the encysted parasite are enteric apicomplexa oocysts.
 8. The method of claim 7, wherein the enteric apicomplexa oocysts are selected from the group consisting of Cryptosporidium oocysts and Toxoplasma oocysts.
 9. The method of claim 1, wherein said encysted parasites are Giardia cysts.
 10. A method to detect an encysted stage of a parasite in feces, said encysted stage selected from the group consisting of a cyst and an oocyst, said method comprising: (a) contacting a sample of feces with a solid support capable of binding said encysted parasite; (b) allowing the sample to dry onto the solid support; (c) washing the sample on the solid support with an aqueous wash solution; (d) adding an aqueous elution solution to the sample and eluting DNA from the sample into the aqueous elution solution by heating; (e) PCR amplifying encysted parasite-specific DNA with primers specific to the encysted parasite being detected; and (f) detecting the presence of a PCR amplification product resulting from amplification of encysted parasite-specific DNA in the sample, wherein the presence of said product indicates the presence of encysted parasite in said feces; wherein said sample of feces has not been treated to concentrate said encysted parasite; and wherein said method is conducted in the absence of a step to remove or inhibit inhibitors of PCT amplification.
 11. A method according to claim 10, wherein the sample of feces is suspended in an aqueous solution before contacting the sample with a solid support capable of binding said encysted parasite.
 12. A method according to claim 10, wherein the aqueous wash solution comprises distilled water.
 13. A method according to claim 10, wherein the aqueous elution solution comprises distilled water.
 14. A method according to claim 10, wherein the heating step comprises heating to approximately 95° C.
 15. A method according to claim 10, wherein the solid support capable of binding said encysted parasite comprises paper.
 16. The method of claim 10, wherein the encysted parasites are Giardia cysts.
 17. The method of claim 10, wherein said encysted parasites are selected from the group consisting of Cryptosporidium oocysts and Toxoplasma oocysts.
 18. A method to detect an encysted stage of a parasite in feces, said encysted stage selected from the group consisting of a cyst and an oocyst, said method consisting of: (a) suspending a sample of feces in an aqueous solution; (b) contacting said suspended feces with a solid support capable of binding said encysted parasite; (c) allowing the sample to dry onto the solid support; (d) washing the sample on the solid support with an aqueous wash solution; (e) adding an aqueous elution solution to the sample and eluting DNA from the sample into the aqueous elution solution by heating; (f) PCR amplifying encysted parasite-specific DNA with primers specific to the encysted parasite being detected; and (g) detecting the presence of a PCT amplification product resulting from amplification of encysted parasite-specific DNA in the sample, wherein the presence of said product indicates the presence of said encysted parasite in said feces. 